Question

2. Solve the following proportion.

r over five equals nine over twenty-one (1 point)
r = 2.14
r = 9
r = 11.66
r = 37.8

Answer 1

r/5 = 9/21
multiply both sides by 5
so
r = 45/21
r = 2.14

Answer 2

thanks damon

Answer 3

Thanks Damon as always.