X+6 divided by x-3 =15 what is the value of x

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

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

Which number line correctly shows 0.8 + 0.3?