1_ Ironbridge Holdings had sales of 265,450 last year and expects sales growth of 7.25% going forward. How long will it take Ironbridge to double their sales at this rate?

2_ Djimon Sala has $9,700 to invest today and would like to have $12,000 in 3 years. To reach his goals, Djimon needs to earn a rate of at least:

3_ Tensing Palmo expects to receive $4,250 on his birthday 3 years from now. He knows he could earn 2.10% on a 3-year investment. The present value of this money is