Answer:
The original price of the tent = $320
Step-by-step explanation:
Let the original price be =$ 
Discount offered = 
% of the orignal price = 
Original price is $80 more than sale price
Discount = Original price - Sale price = $80
So, we have
We need to solve for to find original price
Dividing both sides by 
∴ The original price of the tent = $320
perimeter means add the side
(x+4) +( x+8)+(2x-3) =P
x+x+2x+4+8-3=P
4x-9 =P
A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
