Use distributive prpoerty
a(b+c)=ab+ac
distribute each
3k(-5k+21)=-15k^2+63k
2(2.5k+90)=5k+180
so nowe we have
-15k^2+63k+5k+180
add like terms
-15k^2+68k+180
that is the answer
I may be wrong but I think its B.
The answer is a hope it helps you out
Answer:
y = 90
Step-by-step explanation:
<em>Step</em><em> </em><em>1</em>.
y ÷ 9 = 10
<em>Step</em><em> </em><em>2</em>.
Let's multiply by 9:
( ÷ 9 × 9 = 0 )
( 10 × 9 = 90 )
<em>Step</em><em> </em><em>3</em><em>.</em>
y = 90
The percent of the discount would be 15%.
Micah would earn $280 in 42 months.
