Answer:
the answer is A.
Step-by-step explanation:
3/4 * 5/7 = 15/28 or 0.5357
(x-4)/10=7/5
x-4=70/5
x-4=14
x=18
here you go, practice it once or twice. good luck
A tad more than 29 years, but that depends on the number of times it is being compounded