Sammy is conducting a science experiment where he has to mix 8.25 ounces of vinegar and 4.30 ounces of lemon juice how many ounces what he mix altogether

8.25 + 4.30

(8 + 4) = 12
(.25 + .30) = .55

12 + .55 = 12.55

The answer is 12.55

When a problem says how many ___ altogether, it tells you to add them together

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant