Can someone solve this for me please?

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

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12