Urgently need ! i will mark the best answer as brainliest!

the answer is 20 years

Step-by-step explanation:

i used a website

i=p times r times t

P is the principal amount, $500.00.

r is the interest rate, 2.5% per year, or in decimal form, 2.5/100=0.025.

t is the time involved, 20year(s) time periods.

So, t is 20year time periods.

To find the simple interest, we multiply 500 × 0.025 × 20 to get that:

The interest is: $250.00

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

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