Matt has started a car washing business to save money for college. Each week, he washes 3 more
cars than he did the week before. Matt started by
washing 6 cars his first week in business.

Write a explicit formula that can be used to find the number of
cars he washed on any given week.

A = 6+3n
B = 6(3n-1)
C = 6+3(n-1)
D = 3+6(n-1)