Answer:
20.25
Step-by-step explanation:
45x.40=20.25
C
work:
75 is equal to 2x+15
75-15 = 60
60/2 = 30
x=30
Answer:
4
Step-by-step explanation:
First, rewrite the equation with -5 substituted for A: (-5)^2 +5(-5) +4
Next, simplify that equation: 25 -25 +4
Simplify this further: 4
When A=-5, the solution is 4.
I might is 171 + x= 171x
im not good i maths so