Working together, Perry and Mark can mop a warehouse in 4.8 hours. Had he done it alone it would have taken Mark 12 hours. Find how long it would take Perry to do it alone.

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?