A pair of shoes costs $54.99 and the state sales tax is 6%. Use the formula C=p+rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate.
OK...note that 6% = .06
C = 54.99 + (.06)* 54.99 = $58.29 (rounded)
And there you go.......
+277 
