Answer: 1.75hours or 1.45
Step-by-step explanation:
Answer:
z=0.05 this is the answer
Question 1:
For this case we must rewrite the following equation:

If we add 3x to both sides of the equation we have:

Thus, we have that an equivalent expression is option C.
Answer:
Option C

Question 2:
For this case we must solve the following equation:

Subtracting 5 from both sides of the equation we have:

Dividing between -5 on both sides of the equation we have:

Answer:
Option B
Answers:
1) B: 4
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2) D: (5,2) .
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3) D: (-2, -10).