Surface area = 2(lw) + 2(wh) + 2(lh)
2(4 * 5) + 2(5 * 15) + 2(4 * 15)
2(20) + 2(75) + 2(60)
40 + 150 + 120
310 square inches
Answer:
Second Option, m+7n+30
Step-by-step explanation:
First I'd combine the m terms
22+5m-4m+7n-8
5m-4m
=1m
22+1m+7n+8
Now the numbers with no variable
22+1m+7n+8
22 + 8
=30
<em><u>m+7n+30 </u></em>is our final answer
Answer:
He needs to work 8 hours minimum.
Step-by-step explanation:
9*8 = 72 and he already has 8 dollars saved making it 80. Just enough to get him what he wants. Hope this helped! :)
3+3+4+3 im sure this is the answer just double chek
Answer:
x=17, y=9
Step-by-step explanation:
(5x - 38)° = (3x - 4)°
2x = 34
x=17
(5(17)-38))=47
90°+47°+(7y-20)=180°
7y-20=43°
y=9
