Amie works 6 hours each saturday and 4 hours each monday. she also makes $20 a week as a dog walker. she makes a total of $130 each week. if h represents amie’s hourly rate, which equation can be used to find amie’s hourly rate?

a 6h+20=130
b (6+4)h+20=130
c (6+4)h=130
d 4h+20=130