Elizabeth took 13 minutes less than twice as long as heather to solve the puzzle. if their total time together was 23 minutes, who took less time to solve the puzzle? how much less?

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e