Answer:
$600
Step-by-step explanation:
400*1.5=600
14,15,16
a+a+1 +a+2=45
3a+3 =45
3a=45-3
3a=42
a=42:3 =14(the first number
14+1=15 (the second number
14+2=16 (the third number, the largest number
I believe you can do 1,245 divided by 65 to find out how many puzzles they can buy I may be wrong :/
