A veterinarian knows that the amount of anesthesia needed to put an animal to sleep for surgery is proportional to the animals weight. If 2 milliliters of anesthesia will put a 100 pound animal to sleep, how many milliliters are needed for a 75 pound animal and a 250 pound animal

Question and answers are in the attached picture. you so much in advance.

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

If the scale factor between two circles is 2x/5y what is the ratio of their areas?