Answer:

Step-by-step explanation:
Written in: y=mx+b
Answer:
Turn everything into fractions. You can also combine like terms.
Step-by-step explanation:
Answer: 3.75 miles
Step-by-step explanation:
Divide 30 by 8. 30/8= 3.75. If she walked 1/8 then she walked 3.75 miles
m = 4b+3 mikes age
m +b <138 mike +brother less than 138
4b+3+b<138
5b +3< 138
b< 135
b <27
The oldest the brother can be is 26