Chapter 7 - Section 7.6 - Percent and Problem Solving: Interest - Exercise Set - Page 518: 7

33.75 dollars

I=PRT Let P=375dollars , R=18% ,T = 6 months 6 months =$\frac{6}{12}$year=$\frac{1}{2}$=0.5 I=375 $\times$18% $\times$ 0.5 Write 18% as a decimal I = 375$\times$0.18$\times$ 0.5 Multiply I = 33.75 The simple interest is 33.75 dollars.