About how many times greater is 9.6 x 10^30 than 2.1 x 10^28 A.) 4.6 times greater
B.) 2.187.5 times greater
C.) 21.9 times greater
D.) 457.1 times greater

How do you do this geometry problem

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree