Which number sentence is always true?

a. positive-positive=positive

b. negative+negative=negative

c. negative+positive=positive

d. positive-negative=negative

If you are just building your payment history, how many points from a perfect score will you possibly miss?

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]