Sum of angles of a triangle = 180°
91 + 10x - 4 + 8x +3 = 180
18x + 90 = 180
18x = 90
x = 5°
Answer:

Equation: 
Step-by-step explanation:
Let parking spaces in each row
In
level there are
so total number of parking spaces in 1 level
There are
level so total number of parking spaces

Step-by-step explanation:




6/2=3
Hope that helps :)
The answer to the question is d
Answer:
11.61895003862225
Step-by-step explanation: