I’m pretty sure the answer is B
2(lb+bh+hl)
= 2(50+10+20)
= 160 cm²
Answer:
c=1.49n+7.99
Step-by-step explanation:
c= cost
n= songs
multiply the cost of songs plus the monthly fee, due to it only being once a month
First, we need to get rid of the parentheses. We do this by dividing by four. Remember that, because multiplication and division distribute, we will need to divide each term by four.
1/4 (20 - 4a) = 6 - a
20/4 - 4a/4 = 6 - a
5 - a = 6 - a
Now, we need to get "a" by itself, so we add a to both sides.
5 - a + a = 6 - a + a
Add like terms.
5 = 6
Because this is not a true statement, there is no solution.
