I need help with one and two please WILL GIVE BRAINLIEST

Step-by-step explanation:

Graham’s altitude after t minutes = 14,040 - 50t feet.

Max’s altitude after t minutes = 12,500 + 20t

When they are at the same altitude,

14,040 - 50t = 12,500 + 20t

1,540 = 70t

t = 22

They are they same altitude after 22 minutes.

160 + 3t = 195 - 2t

5t + 35

t = 7

They are the same weight after 7 weeks.

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !