The sum of Sharon's and John's ages is70 . Sharon is4 times as old as John. If you let S= Sharon's age and J= John's age, then the problem can be represented by a system of equations. Which of the following shows a graph of this system and the solution to this problem?

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