Multiply:
a) (x + y)(x + y)
b) (3x + 2y)(3x - 2y)

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

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?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?