I NEED HELP!!! Question: youve taken three tests and scored a 94.5%, a 87.4%, and a 85.1%. what will you have to score on your fourth test to average at least a 90%?

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

The total number of dental clinics total for the last 12 months was recorded

Percent increase and decrease. original number: 45 new number: 18