Rob can mop a warehouse in 10 hours. Maria can mop the same warehouse in 11 hours. Find how long it would take them if they worked together.

What is the probability of rolling a single die greater than 4

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?