I'm really stuck on this question can someone pls help me

Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

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

Which value would be a solution for x in the inequality 47-4x< 7