Answer:
I think it's 150
Step-by-step explanation:
(8+7) × 10 = 150
discriminant= b^2-4ac= (-2)^2-4(4)(9)= -140<0
since discriminant <0, graph is always positive, x has no real roots
y=mx+b
y=30h + 45
h= 6.5h
y=30(6.5)+45
y=$240
