The radioactive isotope sodium-24 is used as a tracer to measure the rate of flow in the blood vessels. The half-life of sodium-24 is 14.9 hours, suppose that a hospital buys a 498
sample of sodium-24.
a) How much of the sample will remain after 48 hours?
b) How long will it be until only one gram remains?

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

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.