Kim worked for 7 3/4 hours on wednesday. if he spent 1/2 of that time cleaning his office, how many hours did he spend cleaning?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost

Four equations are shown below. equation 1: y=2*equation 2: y=2x-5equation 3: y=x2 + 6equation 4: tdentify one linear equation and one nonlinear equation from the list. why each equation you identified is linear or nonlinear. nd one nonlinear equation from the list. state a reasonlinear equation