#### Answer

49.0%

#### Work Step by Step

The rate is unknown. The base is 7.15, the number following "of". The part is the other number, 3.5.
$R=\frac{P}{B}=\frac{3.5}{7.15}=0.4895$
Move the decimal two places to the right convert the decimal to a percent. Round to the nearest tenth.
$0.4895\approx49.0\%$