Ageography teacher lists 23 north american countries on the chalkboard. she asks each student in her class to write a report comparing 2 of the countries. how many ways are ther to select 2 of the 23 countries ? a. 529 b. 253 c. 46 d. 506

answear:

a

step-by-step explanation: a

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

step-by-step explanation:

abc