Steven earns extra money babysitting. he charges $31.25 for 5 hours and $50 for 8 hours.
explain why the relationship between how much steven charges and time is a proportional relationship.
answer this for 30 points!

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given

How can i differentiate this equation?

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old