C-0.2c
Which other expression could Kelly use to calculate her cost before sales tax?

C - (C/100x20)

Step-by-step explanation:

Cost minus the tax

the tax is 20 percent therefore cost divided by 100 times 20

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )