Get the denominator down to a one
15 ÷ 10
__
10 ÷ 10.
the unit rate is 1.5 / 1
the multipy to get the right denominator.
1.5 × 120 = 180
_________ ____
1 × 120 = 120
1.5. 15. 180. 135. 45
___ ____ ___ ____ ____
1. 10. 120. 90. 30
Answer:

Step-by-step explanation:
The volume of a cylinder is:

where
is the radius and
is the height.
The height is 4 inches greater that the radius, so:

Substituting this in the formula for volume:

the volume is 
thus:

Dividing everything between pi:


We can see that the solution for this is 
since 
We have the radius, now we find the height:


Equation would be 6.95+.95x. 6.95 is the price of the pizza itself and the .95x is the amount of toppings and the cost.
So, 30% is 0.30, but since you are taking off 30%, you are going to have 70% of the price which is 0.70. The word "of" lets you know that you are going to multiply. So, what you do is 150•0.70=105. The discounted price is $105