3 pounds of steak costs $21. What is the unit rate for the steak

Unit rate for the stake is 7$.

Step-by-step explanation:

You can do a chart to help you.

Steak : Cost

3        :   $21

2        :   $14

1         :   $7     Here's your unit rate.

I hope this helps :)

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