At regular price the 10 candy bars would cost $5.90 (0.59×10=5.90). At the sale price the 10 candy bars cost $4.95 (0.99×5 = 4.95). So you would save $0.95 (as 5.90-4.95 =0.95).
D = RT
Since R = 65 and T = 5, just plug those numbers into the equation and solve.
D = 65 • 5
D = 325 miles