The cooking club made some pies to sell at a basketball game to raise money for the new math books. The cafeteria contributes four pies to the sale. Each pie was then cut into seven pieces and sold. There were total of 98 pieces to sell. How many pies did the club make?

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?