Answer:
294.30
Step-by-step explanation:
12 x 2 = 24
24 x 11.25 x 1.09 = 294.30
The fewest boxes is 8 because if you do 7 you are below but if you do 7.5 you can't because you can't use half a box but 8 is a whole box which will fit everything
Hi
to progress in math, you must : know by heart the rules and formulas then train.
rule : a ( b+c ) = a*b + a*c.
this propertie is call distributivity .
so we have : 6 ( 9+5X)
here : a = 6
b = 9
c = 5X
so 6 ( 9+5X) = ?
I let you have a shot. Ask in comments section if you are stuck. But try first !