Ireally need to pass this class! graph y=-3x^2+6x +5 does the have a function have a maximum or minimum value? what is the value ?

Sorry dont have an answer i would like to answer any other questions if you need help

I have to assume that the instructions are to "simplify -5+7m-20=20-2m."

If that's the case:

Group like terms together:  7m + 2m = 20 +5 + 20
                                                9m      = 45
                                                  m   =  5 (answer)