please explain your answer and how you got it..

Samantha had a board that was 6ft. 8in.long.she cut off a piece that was 2 ft.10in.long.how much board does she have left?

A.4ft. 10in
B.4ft. 2in
C.3ft. 2in
D.3ft.10in

Convert everything into inches:

6 ft., 8in.- 80 in.
2 ft., 10 in.- 34 in.

80 - 34 = 46 inches.

46 / 12 = this is 3 feet, 10 inches.

can you please give the answer of the whole test

I dont have the answers for the whole test but I do have the answer for this question D. 3 ft. 10 in. Hope this helps!

To find out how much board Samantha has left, we need to subtract the length of the piece she cut off from the original length of the board.

Given that the original board was 6ft. 8in. long and she cut off a piece that was 2ft. 10in. long, we can subtract 2ft. 10in. from 6ft. 8in.

To subtract inches, we need to make sure that both lengths are in the same units. Therefore, we convert 6ft. 8in. to inches. There are 12 inches in a foot, so 6ft. is equal to 6 * 12 = 72 inches. Therefore, the original length of the board is 72 inches + 8 inches = 80 inches.

Now we can subtract 2ft. 10in. (or 2 * 12 + 10 = 34 inches) from 80 inches. 80 inches - 34 inches = 46 inches.

To convert 46 inches back to feet and inches, we divide 46 by 12. The quotient represents the number of feet, and the remainder represents the number of inches. In this case, 46 ÷ 12 = 3 with a remainder of 10. So, 46 inches is equal to 3ft. 10in.

Therefore, Samantha has 3ft. 10in. of board left.

The correct answer is D. 3ft. 10in.

I'll be glad to check your answer.