Mai says the equation 3s = 42 describes the situation. What does the variable s represent?

I think the s stands for students.

Step-by-step explanation:

Let me know if you get this correct if not I am sorry.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed