Choose the correct answers for the following:

!) Solve for x: e^{2x + 1}= 10.

Select one:

a.0.1

b.0.3

c.0.6

d.0.9

e.None of these

2) The best answer for x: ln (e¹⁰) = 3x - 2 is:

Select one:

a.3.8

b.3.9

c.4.0

d.4.1

e.None of these

3) What, approximately, is log₂12? Choose the closest answer.

Select one:

a.1

b.2

c.3

d.4

e.None of these

4) To obtain $15,000 how much should be invested at 8%, compounded monthly, after 10 years? Choose the closest answer.

Select one:

a.$5,000

b.$6,000

c.$7,000

d.$8,000

e.None of these

5) The half-life of carbon 14 is 5,730 years. How old is a bone that has 5/9 of its original carbon 14? Choose the closest answer.

Select one:

a.4,000 years

b.6,000 years

c.8,000 years

d.10,000 years

e.None of these

Clear my choice