25 points and a !scientist mixes water (containing no salt) with a solution that contains 35 % salt. she wants to obtain 210 ounces of a mixture that is 30 % salt. how many ounces of water and how many ounces of the 35 % salt solution should she use?

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Which of the following statement about pascal's triangle are true?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie