Heather burned 210 Calories by walking for 45 minutes at the gym. After this, she burned 140 Calories by lifting weight for 30 minutes. Are these rates equivalent? Explain your reasoning.

Will mark brainliest if you answer ! the taco shop sold 198 lunches friday. this number is 3 more than 3 times the number they sold monday. let n represent the number of lunches sold monday. which equation shows an equality between two different ways of expressing the number of lunches sold on friday? a. n – 3 = 198 b. 3n – 3 = 198 c. 3n + 3 = 198 d. n + 3 = 198

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Write a story that matches with the expression 42x-5 pls hurry