Atividade 12 Observe o sistema de equações abaixo.

{m−3n=16m+5n=−8​

Quais são os valores de “m” e “n” que satisfazem esse sistema de equações?
m=1en=3.
m=7en=–3.
m=52en=–12.
m=–20en=–12.

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Write the rational number in lowest terms 99/-15

Write and solve a real word problem that involves determining distance on a coordinate plane