8, 9, and 10, ? ? tell me how you got it, i'm so confused

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

In a column proof the right column states your reasons