3/4•3/4 in fraction from?

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Write the following as a base and exponent

10% of 1,900,000. show me how you got the answer