Answer:
Step-by-step explanation:
You invest $29,000 in a friend's business, he claims that this money that you invested will double in 7 years.
A = 29,000 (Starting balance)
C = 2A
Y = One year
C = 7Y
2(29,000) = 7Y
58000 = 7Y
-29,000 (because you initially invested this)
29,000 = 7Y
------------------
7
~4142.86 = Y
Every year that you invest in his business, he claims you will earn around $4142.
Hope that helps.