There are 12 children in the pool. Then 5 get out. Then 9 more jump in. How many children are in the pool now? 16 Write the number model. Is this 12-5+9=16 or 12-5=7 and then 7+9=16?

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.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9