What is the radius for a circle of a circumference if 198

Circumference= 2πr

Let π be 22/7

I.e 198 = 2× 22/7 × r

198 =44r/7

Therefore, 44r= 198×7

44r= 1386

r= 1386÷

r= 31.5(the unit to follow)

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

25% is the answer