#7 The average annual cost of tuition, room, and board for
public colleges and universities has been growing
exponentially by 6.17% each year since the year 1981.
The average cost of tuition, room, and board in 1981
was $2665.32.
a. Write an exponential function that can be used to
model the average cost of tuition, room, and board as a
function the number of years past 1981.

mark branliest

step-by-step explanation:

.6 is 1/2 of 12

the answer is actually d. i just took the test

a

step-by-step explanation:

the answer is a

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get