Drake gathers half of the money he had saved up plus the $ 50 his father gave him to buy a new scooter that costs $ 125. Determine the amount of money Drake has saved up . Please help!

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.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a