If a = -3n + 2, and b = 5n - 7, what is the value of a + b, in simplest form? a. 2n + 9 b. -8n - 5 c. -3n d. 2n - 5

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?