The circle has a radius of 3 cm. what is the area of the circle? a. 9.42 cm2 b. 56.52 cm2 c. 18.84 cm2 d. 28.26 cm2

Last year, laura had $30,000 to invest. she invested some of it in an account that paid 7% simple interest per year, and she invested the rest in an account that paid 8% simple interest per year. after one year, she received a total of $2230 in interest. how much did she invest in each account?