A rectangular prism has a length of 12in, a height of 5in, and a width of 8in. What is it’s volume, in cubic in?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Which of the following shows the length of the third side, in inches, of the triangle below