What is the solution to y = 3x + 2 for the replacement set x = {1.1}?
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If you have to explain how you got the answer say you used a calculator if your allowed. And you multiply 3*1.1. Then add the product to 2. Which will get you y. Then answer is below.

5.3

Mg remaining = (initial amount in mg) (1/2^(t/h)) where h = half-life

1.

a.
mg remaining = (500) (1/2^(3/4)
= 297.3 mg
b.
mg remaining = (500)(1/2^(8/4))
= 125 mg
2.
5 represents the time elapsed from when the medication entered the bloodstream. Assuming the medication was given at noon, add 5 hours to have 5:00 pm.

Good luck! I need sleep. XD