Answer:
80
Step-by-step explanation:
To have 16 more pages means he has 20% more of the book to cover if he has already covered 80%
Let the number of pages in the book be X
20% of X = 16
20/ 100. * X = 16
1/ 5 * X = 16 >>> X = 16 * 5 = 80 pages.
The elevation of the skiier at the top of the mounting is given by 2,395 - 642 = 1,753.
Answer:
First option.
Step-by-step explanation:
In this case you need to remember that an angle formed by two intersecting chords is equal to the sum of the intercepted arcs divided by 2. This is:

You can identify in the figure that the angle ∠1 is an angle formed by two intersecting chords. Therefore, since the intercepted arcs are SP and QR, you can say the following:

You can observe that this matches with the first option.
Answer:
4 is D
5 is B
Step-by-step explanation:
for #4 just plug the numbers into the formula: y = mx + b
for #5 use the slope formula.