12
change the mixed numbers to improper fractions before dividing
1 
= 
and 15 
= 
divide contents of box by a serving
÷
change ÷ to × and turn the second fraction upside down
= × 
= 
= 12.26666 = 12 complete servings
657.1 ?
As so get the surface area you do widths X length X height and you split the diagram so you only have to work out the cube and the prism by themselves, then you add them together to get 657.135 and rounding to the nearest tenth would be 657.1 I think :))
$46.25; Since there are no variables (no numbers that could change, such as how many family members they have), you can simply add them all together to find your answer.
18.00+16.50+11.75
$46.25
4%=0.04
0.04x£3500=£140
£140x3=£420
