19) (5 points) Phosphorus-32, used in agriculture, has a half-life of 14 days. 22 milligrams of Phosphorus-32 is present initially in a sample, determine how much Phosophorus-32 is left after 20 days.  How many days will it be till only 5 milligrams of Phosophurus-32 remain in the sample?  

22) (4 points) Solve the system of equations:

INSTRUCTIONS: The following problems relate to identifying and evaluating inductive and deductive arguments. Select the best answer for each.That billboard in the middle of the field says “Get the U.S. out of the U.N.” From this it’s clear that the United Nations is a bad organization.

In a multi-gestational pregnancy, risk assessment for Down’s Syndrome through which form of screening is most accurate?

With 500-750 mL/min blood flow to the uteroplacental unit in the intrapartum woman, cardiac output increases during pregnancy. Cardiac output peaks immediately after birth before beginning its decline?

9)  (8 points) For the rational function

13) (6 points) Given that   find two non-identity functions, and such that

15) (8 points) Given the function

6) (8 points) Solve the inequality

Solve the problem.A church steeple casts a shadow 117 ft long, and at the same time a 9.0-ft post casts a shadow 8.0 ft long. How high is the steeple? Round to the nearest unit.