Four gallons of gasoline cost $16.80. what is the price per gallon?

Y=4x^2+x-1 solve using quadratic formula

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

Sasha delivers newspapers to subscribers that live within a 4 block radius of her house. sasha's house is located at point (0, -1). points a, b, c, d, and e represent the houses of some of the subscribers to the newspaper. to which houses does sasha deliver newspapers?