Will these products be positive or negative? How do you know? (-1) (-1) X ...X(-1) = (-1)12 12 times

(-1) X (-1) X ... X (-1) = (-1)13 13 times

i need an answer for both...​

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.