Which is the simplified form of n^-6p^3

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

What is the value of x in the equation7x+2y=48 when y=3

Simplify the following expression 48^1/2