24.12 I did 180% times 13.4
Answer:

Step-by-step explanation:
we have

Find the inverse
Let
y=f(x)

Exchange the variables (x for y and y for x)

Isolate he variable y
subtract 12 both sides

divide by 4 both sides

Let
g(x)=y
---> inverse of the function f(x)
Answer:
d. 40
Step-by-step explanation:
2x + x +( x + 20) have to all equal 180 degrees in a triangle.
2x + x + x + 20 = 180
2x + 2x + 20 = 180
4x + 20 = 180
4x = 180 - 20
x = (180-20) / 4
x = 160 / 4
x = 40
Answer:
no
Step-by-step explanation:
31 is an odd number.
Answer:
29
Step-by-step explanation:
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