Answer:94.2 m
Step-by-step explanation:
Answer:
b) 29π mm²
Step-by-step explanation:

Answer:
The new cost is $108.98
Step-by-step explanation:
Mark up is the amount that is added to cost price of a product for profit.
Given
Cost price of boots = C = $99.99
Mark up = 9%
First of all we will calculate markup and then add it to the cost price of boots to find the new cost.

The new cost will be:

The new cost is $108.98
10 is 20 degrees
11 is 180-145= 35 degrees
12, so the way you do it is by the fact that one opposite exterior angle is equal to two interior angles, so 40+46= 86 degrees.
8 is 86-35= 51 degrees
9 is 29 plus 62 equals 91 degrees.
Hope this helps! I tried to type this really fast