Answer:
x=42
Step-by-step explanation:
2(x-8)=68
Distribute the 2
2x-16=68
Use the addition property of equality (add 16 to both sides)
2x=68+16
2x=84
Use the division property of equality (divide both sides by 2)
x=84/2
x=42
Answer:
z=-3
Step-by-step explanation:
42 = -7z+21
-7z=21
z=-3
Answer:
C. (0, 7)
Step-by-step explanation:
Just use a graphing calculator.
You would pay $16.4. you would do: 20 times .18 which equals $3.6 off. 20-3.6= $16.4.
Answer:
Below.
Step-by-step explanation:
Yes - those are 2 semicircles so their combined area = πr^2
= 3^2π
= 9π.
