Answer:
A
Step-by-step explanation:
After u calculate the measure of each side by using formula

U should calculate the sum of all sides of this polygon
5x + 3 is a linear equation in one variable
Answer:
305% is equivalent (which means equal to) to 3.05, or 305/100, which can be simplified to 61/20.
Step-by-step explanation:
Answer:
b = 
Step-by-step explanation:
Given
a = 4b +
- b, that is
a = 3b + 
Multiply through by 3 to clear the fraction
3a = 9b + 2 ( subtract 2 from both sides )
3a - 2 = 9b ( divide both sides by 9 )
= b