Answer:
#7=A
#10=
Step-by-step explanation:
for #10 idk the answer but its kind of similar to number 7
sorry
The answer is A. for this, you have to set up a system of equations. the first one will be the area equation. since you know area=length x width, your equation will be LxW=50. the next equation is L=2W, since the length is two times the width. then, plug in 2W for the L in the other equation and you get 2W^2=50. divide by 2 and get W^2=25. square root both sides and you get W=5. plug back into the other equation to find L=10. Then, add the sides of the rectangle for the perimeter. 10+5+10+5=30.
Answer:
6
Step-by-step explanation:
C and d are going to be the answers to your question. >-< :)
To get the answer, all you have to do is 715 ÷ 55 which equals 13 (hours)
