20× 8 = 160
160 + 2x > or = 500
-160--------------- -160
2x > or = 340
÷2------------÷2
x > or = 170
She has to sell at least 170 cupcakes to make $500 in profit.
Hope this helps!
Answer:
A. 54
Step-by-step explanation:
A right angle = 90 degrees
They provided one acute angle which is 36
Add 90 + 36 = 126
A triangle = 180
So 180-126=54
C. 2x+5
...................
Answer:
80 degrees
Step-by-step explanation:
the angles in a triangle all add up to 180 degrees
Answer: B and C
Explanation:
x^2 + 3x - 18 = 0
(x + 6)(x - 3) = 0
Set x + 6 = 0 => x = -6
Set x - 3 = 0 => x = 3
