Why is “3 meals a day” a unit rate? It compares 1 meal to 1 day. It compares 1 meal to 3 days. It compares 3 meals to 1 day. It compares 3 meals to 3 days.

it’s the first one your welcome

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.