If you multiply 10 by 4 that gets you the area, but you need to find the surface so multiply the product by 7 and that gets you the surface which is 280
From 145 pounds to 132 pounds
145 - 132 = 13
13 pounds
Check:-
132 + 13 = 145
Correct!
13 pounds
The correct answer to your question would be C, to list the the product as 2 for 6$
Felipe subtract 3x from both side to get rid of x on one side. Ik this isn’t part of the answer but the correct way to do this would be to subtract 2x from each side after adding 8 to each side of the equation