Write an equivalent expression for the following.
-3(ab +6ba) -(4+b)

Find percent notation for 0.008 0.008=

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible