L=7+w
P=(12x+14)=2(6x+7)
l+w= P/2 = 2(6x+7)/2= 6x+7
l+w=6x+7
2l = 6x+7
l = (6x+7)/2
l=7+w
-> w= l-7
= [(6x+7)/2] -7
= (6x+7-14)/2
= (6x-7)/2
Answer:
7.375 ib.
Step-by-step explanation:
You just add it all together
A rectangular prism has 6 surface.
Answer: b 1.20
Step-by-step explanation:
b 1.20
Just remove the parenthesis since you are adding them and combine like terms
x+5+2x+3
3x+8
