For each growth rate below, use the rule of 70 to calculate (i) how long it will take incomes to double, and(ii) if each country starts with an income of $1,000 per capita, what the income will be in 30 years.

Instructions:Round your answers to one decimal place. Find;Years for incomes to double, & Incomes in 30 years

a. 4 percent

b. 7 percent

c. 2.5 percent

d. 10 percent

e. 3 percent