Mr Thompson's math class averaged poorly on a test, so he gave them a retest. There are 30 students in his class. On the retest, 10 students gained 10 points each, 10 students lost 10 points each, and 10 students had no change in their scores. How does the MEAN of the retest scores compare to the MEAN of the scores on the first test?

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

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

X2 + y 2 = 36 x + y = 6 solve the system of equations.