Which expression means 5 less than the product of 9 and a number w

9 x w = x

x - 5= y

Step-by-step explanation:

9 x w = x                                  w = a variable that equals the second multiplier.

                                                x = a variable that equals the product of 9 and x.

x - 5 = y                                     y = a variable that  equals the end value.

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.