Answer:
r = 29.82
Step-by-step explanation:
r/7.1 = 4.2
r = 7.1 x 4.2
29.82
First, we multiply all terms by the same number to get rid of the denominators.
71 x /71/10 = 71 x 42
Next, we cancel the multiplied terms in denominator.
10 = 71 x 4.2
Solve!
10 = 29.82
