Answer:
48
Step-by-step explanation:
18 less than half a number is 6.
So this is the formula:
X/2 - 18 = 6.
You can add 18 to 6.
X/2 = 24.
You can now multiply by 2.
X=48
4.16 / 5.20 = 1 / x.....4.16 lbs to $ 5.20 = 1 lb to $x
cross multiply because this is a proportion
(4.16)(x) = (5.20)(1)
4.16x = 5.20
x = 5.20 / 4.16
x = 1.25 per lb <==
by 10 years it'll be 24439 but by 11 it'll be 25661 so it's technically 11 years
I think 15 I am not 100 percent on that