2x-7y=-6 but x = 5y , so
2(5y) - 7y = -6
The formula for finding the area of any regular polygon if you know the length of one side and the apothem: A = (n × s × a)2 A = ( n × s × a ) 2 , where n is the number of sides, s is the length of one side, and a is the apothem.
Answer:
mean add them all up and divide by 8
Step-by-step explanation: