identify each material as a compound or a mixture. Caffeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed ratio.

HELP HELP ME PLEASE!!!!!!! Jake bought the pizza shown above for lunch, which was cut into four equal slices. What percentage of the pizza did Jake eat if he had three slices?A) 25% B) 50% C) 67% D) 75% the pic is below Carpet sells for $3 per square foot and will cost you $810 to recarpet your rectangular room. if your room is 18 feet long, how many feet wide is it? A nurse in a mental health clinic is caring for a client who has bipolar disorder Javier buys 12 bagels for $2.50. At this rate how many bagels could Javier buy for $6.25?A. 18B. 30 C. 31D. 48 Who were the caudillos of Latin America? Decide whether the sequence is arithmetic geometric or neither 5,-10,20, -40 This solution contains equal concentrations of both hf(aq) and naf(aq). write the proton transfer equilibrium (net ionic) reaction that includes f as a reactant. include states of matter. two triangles are similar, and the ratio of the lengths of each pair of corresponding sides is 2:1. which statement regarding the two triangles is NOT True?A- Their corresponding angles have a ratio of 2:!B- Their areas have a ratio of 4:1C- Their perimeters have a ratio of 2:!D- Their altitudes have a ratio of 2:! Which is the correct order of events that occur during conception?ovulation, implantation, fertilization, zygote formationovulation, fertilization, zygote formation, implantationfertilization, ovulation, implantation, zygote formationfertilization, zygote formation, implantation, ovulation A mobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. Tom has already used 230 minutes this month. Which inequality can be used to determine how many more minutes Tom can use this month without going over the 500-minute limit? When a person adopts parents' or society's roles and values without questioning and exploring a personal identity, it is referred to as identity _____? Community center has an L shaped swimming pool that is 10 feet deep. What is the volume of the pool12001040640880 if a + b = -5 and x + y = -5, what is 6y + 6x - b - a *20 Pts* What are two fractions with different denominators that each have the LCD of 36? Five years ago, Tims mom was three times Tims age today. Now their combined ages are 45. How old is Tims mom today? Which is the best definition of a square? A. a 4-sided polygon with all sides equal B. a parallelogram with all sides equal and all angles equal C. a combination of a rectangle and a trapezoid D. a 4-sided polygon with all angles equal Mark has 36 drawings of horses and 4 drawings of spaceships. write and solve an equation to find how many times as many drawings of horses he has as spaceships. qu impacto tiene el desarrollo cientifico y tecnologico en nuestras vidas? This image shows the Great Sphinx. During which era was it constructed? during the Old Kingdom during the Middle Kingdom during the reign of the Hyksos during the New Kingdom