4. Use equation you wrote in problem
3 to find the total cost of being an
all-star library member for 19 months.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

b.my answer is b.

brainliest

other answer is correct. i had used the radius of the radius somehow. a website:

a) 0

step-by-step explanation:

i^413 x i^0 = 0 as any number multiplied by a zero is

happy to

pls mark as brainliest.