Willis is older than Heard. The difference of their ages is 12 and the sum of their ages is 50. Find the age of each. ​

Willis is 31 and Heard is 19.

Step-by-step explanation

31 - 19 = 12

31 + 19 = 50

he has now walked a total of what?

if i know what this is maybe i can

step-by-step explanation:

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. : )