What is the unit rate in dollars for each company?

The unit rate for "On call" is 35 cents per hour and "Talk time" is $2.50 per hour.

On call: In order to get a unit rate, the second part of the ratio must be 1. 10 divided by 10 is 1. However, what you do to the second part you must do to the first. 3.5 / 10 = .35 or 35 cents in this case.

Talk time: 1/2 an hour isn't a full hour (since we are finding the money paid per FULL HOUR). This means we must multiply 1/2 by 2 in order to get 1. However, what you do to the first part you must do to the second part. $1.25 x 2 = $2.20. $2.20 is paid every FULL hour.

they will manufacture 8496 cars

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