Which expression is equivalent to 5(7v+3)?

15v + 35
7v + 15
35v+3
35v+15

35v+15

Which expression is equivalent to 3(7u+2)+8?

A. 21u + 14

B. 21u + 10

C. 14u + 21

D. 7u + 14

A. 21u + 14

Which expression is equivalent to 9(2x+4)+5?

A. 41x + 18

B. 18x + 9

C. 18x + 41

D. 2x + 41

A. 41x + 18

Is 6 a factor of 54c+48?

Yes or no

Yes

Is 9 a factor of 56a+12b?

yes or no

No

According to her running log, Shivani averaged 3.2 miles per week last month and 2.8 miles per week this month. By what percent has her average decreased?