Answer:
a+2b
Step-by-step explanation:
2(a+2b) -a-2b
2a+4b-a-2b
a+2b
Question 10: P=28cm
if l=8 and w=6
Then (8+6)=14
2(14) so 14x2 = 28
So therefore P=28cm
Answer: 39
Step-by-step explanation:
156/4
4 payments
Total 156
So divide that and you will get 39
Answer:

Step-by-step explanation:
<em><u>The correct function is</u></em>

we have
System of equations
-----> equation A
-----> equation B
Solve by substitution method
substitute equation B in equation A

Solve for r
Divide by 7.188π both sides

square root both sides

Answer:
103 students live 1 mile away from the school.
Step-by-step explanation:
First dicide what the problem is really asking you then you end up getting divisoin them divide 515/3.