If you me‼️‼️i will make you brainliest ‼️no cap ( well that’s only if you give me the answers to all the questions)

QUESTION 1

Mike is x=20-y (x is Mike's age)

Joe is z=3y-4 (z is Joe's age)

QUESTION 2

Just plug in 5 for y

Mike would be 15

Joe would be 11

Question 3

Sally would have to be 10 years old because 10 is the only number that makes Mike age also 10. x=20-10

Yx3-4 part 1 joe y-20 like part 1 part2 how 5×3-4=11years old mike part 2 is 5-20=15years to find joes age I used the equation from part 1 and replaced the ys with 5 also with mike i did the same part 3 Sally would be 15 years old i solved this by looking back a part 2 at mikes age and the equation would be 20-5=15 15=y y= sallys age

Step-by-step explanation:

13.76

Step-by-step explanation:

find both areas and subtract