Ryan uses the expression 15x + 50 to represent how much he will earn in a month. Kim uses the
expression 20(x - 2) to represent how much she will earn in a month. In both expressions x represents the
number of hours worked. How much more does Kim earn in a month than Ryan?
A.5x - 90
B.5x-10
C.35x + 10
D. 35x - 90