Answer:
56
Step-by-step explanation:
there are 56 boxes in yellow with each box = 1cm^2
let nwmber to be X
the number is 12 less than it's square,
so X=12-X^2
=> X^2+X-12=0
=> (X+4)(X-3)=0
=>X= 3, or X=-4
in math we don't usually take negative numbers into account so your number would be 3
2. 1,3,5
4 = 18.00
= 4.50
4.50 x 6 = 25.20
= 6.00
happy has 25 quarters in total
