C. $360
$224x4=896 (total profit)
$896 (total) - $536 (first month profit) = $360 (second month profit)
The pattern is that every 2 numbers are a pair, the first being any selected number, and the second number next to is the number times 3.
3 x 3 = 9
4 x 3 =12
7 x 3 = 21
Therefor we type 16 x 3 = 48
48 is your next number.
Now, divide both sides by 60 to isolate the variable x.
= 60x/60 = 1500/60.
x = 25.
<span>answer is </span><span>25%</span>