If 9% of the bar’s weight is iron, how much does the iron weigh

9 pounds

Step-by-step explanation:

if the bar weighs 100 then the iron weighs 9 pounds. if the bar isnt 100 pounds then just do 9 divided by the weight then multiple that number by the percent

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )