If the ratio is 7: 4 and the sum is 220 what is the bigger number

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

For what values of x is x2 + 2x = 24 true?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?