Answer:
240
Step-by-step explanation:
First, keep finding mulltiples untill you find one common one. (I really don't want to write them out until you get 240, so I'll show you what you multiply to get to it)
12*20=240
24*10=240
30*8=240
With every week you save, 15 more dollars are added into your savings.
or
1.6
12x/2 or 52/2
Ok, perimeter is length+length+width+width. 12x/2 and 52/2 could are probably the answers.
