Elle is 6 years younger than felicia. marta is twice as old as felicia. if marta is w years old, a) find the age difference between marta and elle. b) write an expression that shows the three girls' average age. show how you found the answers.

a) 0.5w-6 b) (w/2-6+w/2+w)/3 simplified version 2w/3-2

Step-by-step explanation:

m-w

f-w/2

e-w/2-6

average is all numbers added divided by the number of numbers

in this case there are 3 different numbers

i would need to see the dot plot : )

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.