<u>Answer:</u>
8
<u>Step-by-step explanation:</u>
We are given the following expression and we are to find the simplest form of this expression:

First of all, we will factor the coefficient:

Rewriting it as:

Applying the exponent rule
to get:


Answer:
a) 3x-5=16
b) 30cm
Step-by-step explanation:
a) 5(x-1)=2(x+8)
5x-5=2x+16
5x-2x-5=16
3x-5=16
b) solving the equation gives x=7
put x=7 into first line, 5(7-1)=30cm
to check we can place it into second one as well
2(7+8)=30cm
Answer:
x =550
y=250
Step-by-step explanation:
.2x + .04y = 120
x + y = 800
Answer:
no
Step-by-step explanation:
because they have different gradients