All of last year's car models were marked down 40%. Tracy wants to buy a car that now costs $18,000. What was the retail price of the car?

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

a

step-by-step explanation:

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d