The average amount of chlorine needed for a swimming pool is 3.6 milligrams of chlorine for every gallon of water. Which equation can be used to determine c, the number of milligrams of
chlorine needed for a swimming pool containing g gallons of water?

A. g = 3.6/c

B. g = 3.6c

C. c = g/3.6

D. c = 3.6g

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

4.28095238095 that is the answer