Is 13-yard gain a positive or negitave integer? explain the meaning of zero in this situation.

Adriveway is 40 yards long about how many meters long is it

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.