Ariel takes 3 pages of notes during each hour of class. In all, how many hours will Ariel have to spend in class before she will have a total of 36 pages of notes in her notebook?

12 hours

Step-by-step explanation:

36 divide that by 12 and she has 12 hours to write on 36 pages

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