another sum of arithmetic sequence
a = 41,000
d = 9000
n = 5 (so n-1 = 4)
https://www.mathsisfun.com/algebra/sequences-sums-arithmetic.html
A hardware store makes a profit of $41,000 during its first year. The store owner sets a goal of increasing profits by $9000 each year for 4 years. Assuming that this goal is met, find the total profit during the first 5 years of business.
1 answer