Acar rental costs $50 for the first day. additional days cost $35 per day, unless the car is rented for 7 days or more, in which case there is a 10% discount on the daily rate. identify the expression which represents the cost of renting a car if the car has been rented for more than a week. a.) 45+35x b.) 45+31.5x c.) 50+35x d.) 50+31.5x

Option D

Step-by-step explanation:

Let

x------> the number of days

y----> the cost of renting a car

we know that

For

For

The rate is equal to

so

In this problem. the car has been rented for more than a week

therefore

The cost of renting a car is equal to

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