Four times What divided by two equals 5.2

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

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)