Mary is traveling cross country on a road trip. so far, mary has traveled 200 miles in her car and 200 miles by train. the car traveled at a rate that was 30 miles per hour slower than the train. mary modeled the total time for her trip with the following expression. what does x - 30 represent in this situation? the speed of the car the speed of the train the total distance traveled by the train the total distance traveled by the car

I don't know what the answer is to this question.

Step-by-step explanation:

I don't know what the answer is to this question.

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