At the end of 3 years obi has incurred a debt of $5000 from money borrowed fromhis friend with a promise of 10% compound interest. If the interest on the money is $1050, how much did obi borrow

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal