9. ABCD is a square and ABK is an equilateral triangle outside the square,
Find measurment of angle DKC

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

Four individuals pool money together to start a new business and agree to split the profits equally. n invests $6,000, x invests $2,000, y invests $8,000 and z invests $4,000. if the profits for the first month were $100,000, y receives than if the profits were divided in proportion to how much they invested.

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.