Answer:

Step-by-step explanation:
The first step to do is make a single triangle from the problem. That triangle can be BDH. We do still need the line BE, although that can wait.
Now find the last angle of the triangle. The sum of angles of a triangle always equal 180, so we can easuly find the missing angle.

So the missing angle is 109°. Now we can find the value of x.
We can use that angle because it sits right next to x on the same line. A line is 180° at any node as long as the line continues straight, so we simply subtract the angle we just found to find x.

Now we know x is 71
So what you need to do is take your Initial value of 3.95
y=3.95(1+.2) You start with 1 book of 3.95 and if yo mark it up 20% thats .2 out of 1 so you add 1+.2 to get 1.2 and times 3.95 times 1.2 to get <span>4.74
Y=</span><span>4.74
So the markup cost is 4.74</span>
Answer: 4 1/16
Step-by-step explanation:
Answer:
5040
Step-by-step explanation:
There are 7 possibilities for the first spot, 6 for the second, etc.
7*6*5*4*3*2*1=5040
1250 skiers bought season passes
2500 snowboarders bought season passes