Answer:

Step-by-step explanation:
Squares 
Volume 
Generally the equation for Volume of box is mathematically given by




Since
Length of cardboard is


Therefore
Dimensions of the piece of cardboard is

Answer:
x=21
Step-by-step explanation:
x=9+12 x=21
The answer is 44 h(-7)= -7^2 -5 =49-5=44
Answer:
Yes
Step-by-step explanation:
3(5+1)=3(5)+3
15+3=15+3
18=18
Answer:
1,250 miles/hour
Step-by-step explanation:
To find miles per hour -
.