Please help me out! I have spent over 127 points on these circumference questions so far... :(

Anyone who is good at math, please go to my profile and answer my math questions! A lot of them are not/only halfway answered.

The circumference of the green circle is about 138.23 meters.  

The circumference of the blue circle is about 69.115 meters.    

Step-by-step explanation:

Considering 22 m as the green circle radius and 11 m as the blue circle radius:

The circumference of the green circle is about:  

The circumference of the blue circle is about:  

2

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