Delia can buy 3 sweatshirts for a total of $39. How much would it cost if she were to buy 7 sweatshirts?

7 sweatshirts costs $91

Step-by-step explanation:

Well, first we have to find how much each sweatshirt costs alone. The sweatshirts are $13 each. So, if we multiply 13 by 7, you'll get the amount that 7 sweatshirts costs.

I'm 97% sure this is correct

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i am unable to solve this problem

step-by-step explanation:

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