Which of the followiIf set A = {3, 4, 7, 9} and set B = {8, 9, 10, 11}, then A∪B is

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

Aswimming pool measures 22ft by 12ft and is 4ft deep. if the pool is being filled at 2.5 cubic ft per minute, how long will it take to fill the pool?

Describe how making an ‘and’ compound sentence effects your solution set