Answer:
9 degrees
Step-by-step explanation:
Wait so are the sides of the octagon 9 inches each or do we have to find that?
5(12.50 x 7) = 437.5
Explanation: you take the amount she makes for one hour (12.50), times it with the hours she works in a day (7), and then times it with how many days she works (5).
Equation is (x+2)^2 - x^2 = 7676
solve the equation by first opening the bracket of (x+2)^2 by A^2 + 2AB +C^2
you'll end up with 4x + 4 = 7672
thus x = 1918 and the next number is 1920.