I can’t figure out the red part please help much appreciated

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Tiene pendiente -4 y pasa por el punto (-3,-2) encuentre la ecuación de la recta