The square numbers of 45?
I don't really know what you mean by that but if you're looking for the square numbers before 45, they are as follows:
1
2
4
9
16
25
36
Hope this helps :)
Answer:
$3.50
Step-by-step explanation:
2.5% x 25 = 62.5%
2.50 divide 62.5% = 4
4x25=1.00
2.50+1.00=3.50
12 x 2 = 24 (Julio), 24 x 4 = 96 (David).
To solve this, set up a proportion where X is the amount that 120 lawn mowers would cost. It would look like

.
Then cross-multiply to get 40x = 120(4776) or 40x = 573120. Now divide each side by 40 to isolate the variable.
X = 14328.
120 lawn mowers would cost $14,328.