The equation 12.5(x + 20) = 460 describes Steve's exercise plan for the
next 12 weeks. He wants to bike 20 miles per week and run x miles per
week for a total of 460 miles. How many miles, x, should Steve run each
week to achieve his goal?
A. 56.8 miles B. 38.4 miles. C. 35.2 miles. D. 16.8 miles