Sally is trying to decide how many T-shirts to produce for an upcoming event. During the event, she can sell T-shirts for $20 apiece. However, when the event ends, any unsold T-shirts are sold for $4 apiece. It costs Sally $8 to make a T-shirt. What is the probability that Sally will run out of stock

its a, i had the same answer, its from study island right

step-by-step explanation:

perpendicular to x*4 means it's y = -1/4*x+k

so for y = 7 and x = 2

we have 7 = -1/4*2 + k so k = 7.5

so the equation is   y = -1/4x + 7.5

a.   - 4   and

d.   -18

step-by-step explanation:

if the discriminant is negative there are no x intercepts.