Kala bad 109 dollars to begin with. She just spent k dollars. Using k, write an expression for the number of dollars she has left

109-k= the amount she has left

amount left = 109 - k

Step-by-step explanation:

she spent k dollars so we subtract k from 109 and we'll know how much is left.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4