Answer: 
Step-by-step explanation:
Given
Andy wants to turn
on his skateboard
Currently, he can make a turn of 
The difference between the required and current turn degree meets his goal i.e.

Thus, he needs to turn by
to meet his goal
Step-by-step explanation:
difference of 9 and 2 is 9-2
product of 4 and (9-2)
4*(9-2)
Step-by-step explanation:
Area of shaded region = area of exterior rectangle - area of interior rectangle

Answer:
Step-by-step explanation:
3
Two figures are similar if they have the same shape but not necessarily the same size although they are the same shape they are different sizes