Answer:
x = 7
Step-by-step explanation:
Parallel lines so their the same
11x - 2 = 75
add 2 to both sides
11x = 77
divide both signs with 11
x = 7
Answer: Yes
Step-by-step explanation:
Each value of y maps onto one value of x.
Answer:


Step-by-step explanation:
Area:
π 
π
*Square 2x*
π
*Divide by π*
*Divide by 4*
*Square root*
*Solve*
x ≈ 3.482
Now take the same equation but replace 2x with 3x
π 
Now replace x with 3.482 and solve for area.

Volume:
π
*Insert variables*
π
*Cube 2x*
π
*Multiply
on both sides*
π
*Divide by π*
*Divide by 8*
*Cube root*
*Solve*
x ≈ 2.208
Now take the same equation but replace 2x with 3x
π
Now replace x with 2.208 and solve for volume.

Answer:
$2
Step-by-step explanation:
The price of each calculator is found by dividing the box price by the number of calculators in the box.
$30/5 -$32/8 = $6 - $4 = $2
In boxes of 8, each calculator costs $2 less.
7.5. 30 divided by 4 equals 7.5