HELP ME PLEASE Find the volume of the cylinder when it is 70% full. Use 3.14 for PI and round to the whole number. height 13 radius 7

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 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 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.