The number of cases of a new disease can be modeled by the quadratic regression equation y = –2x^2 + 44x + 8, where x represents the year. which is the best prediction for the number of new cases in year 20? a. 234 b. 422 c. 618 d. 88

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