4x - (-6) what’s the answer

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

For the function, f(x) = -5x 2, find f(-4).

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