45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 students took the test, find the number expected to fall within each of the following ranges: a. 79 and 91 c. above 80 b. 80 and 90 d. below 60​

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Simplify. 3(4+4x) (type your answer in with no spaces)