1/4 or .25 or 25%
You basically just divide 60 by 15. So 15 goes into 60 4 times. Therefore, 4 is our denominator with one as our numerator.
A^2 + 9 = 36 now solve subtract 9 from both sides to get a^2 = 27 then find the square root of 27 and that should be your answer so like 5.196 something
Dat be called common difference represented by d in the equation
I'm guessing A because 28-8=20 and 20/4=5 round tables needed