Why is everything due tomorrow xD. Also im sorry but I dont understand this either.
The answer to number 3 is -12 because you would do X times 4 and then add 8
the answer to number 4 is 46 because you would do X times 3 and then add 7
If you sketch the triangle you will see it is a right triangle with B being the vertex for the right angle. the orthocenter is the intercept of the three altitudes. for a right triangle, the orthocenter is the vertex where the right angle is.so the answer for this question is (-4,5)
Answer:
165 meters is 5.5% of 3 kilometers.
Solution:
We need to calculate 165 meters is what percent of 3 kilometers.
When comparing or calculating percentage the two quantity should have same units.
So we need to convert 3 kilometers into meters
1 km = 1000 meters
So 
3 km = 3000 meters
Now, need to calculate 165 meters as how much percentage of 3000 meters
So we get
= 5.5%
Hence 165 meters is 5.5% of 3 kilometers.