(7.3 times 10 to the 8th)(2.4 times 10 to the 3rd)

Can anyone me with 32,33,36,37,and 40.

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.