A pharmacist wants to make 23 ml of a 45% hydrogen peroxide solution. How many mls of 32% hydrogen peroxide must he mix with 55% hydrogen peroxide to make the desired solution?

Avery has saved $295 to spend on christmas gifts for 11 people. which is the best estimate of the amount he can spend for each person?

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

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.