What is the simplified expression for -3(2x - y) + 2y +2(x + y)?

a. 8x + y

b. y - 4x

c. 7y - 4x

d. -4x - y

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Is a positive integer raised to a negative power always positive

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you