A house painter uses a 9.0 inch wide "roller” which is 5.0 inches in diameter to paint a wall with a surface 2.40 m x 6.70 m. The surface includes 2 windows (2.0 ft x 3.0 ft each) which, obviously, should not be painted. What is the minimum number of times that the painter
has to roll his "paint roller" (one full circle for each roll) in order to apply one layer of paint
on the surface to be painted?

lol

step-by-step explanation:

-6 is the correct option from the above given options

explanation:

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).