Question 1110806

Bill for A = 300+(90-50)*1.5= 360

Bill for B

300+(x-50)1.5
= 300 +1.5x -75

225+1.5x


360/(225+1.5x) =3/4

360*4 = 3(225+1.5x)

1440= 675 -4.5x

1440-675= 4.5x

765= 4.5x

x=170 calls total