An advertisement for a lawn service claims their fertilizer treatment kills weeds in half the time. When you read the small print at the bottom of the ad, you see that they asked 20 of their long-term customers to estimate how long it took until their weeds died out before employing the lawn service. On average, the customers said it took 4 weeks for all the weeds to die before the service. The company knows that their fertilizer treatment can kill weeds in 2 weeks

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

a

step-by-step explanation: