Elsa's store purchased a sofa at a wholesale price of $350, and sold it for $630. What is the percent of markup?

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2