Josh started reading at 8:18am. he finished reading at 8:57am. How many minutes did he read?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

How do you solving the solution of each system using elimination?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a