The angle congruent to ∠CGD is the angle ∠AGF as they are vertical angles.
The cost of the monthly fee is 50$.. if the joining fee is 100.. take 200 and subtract that fee since it is included in the total. You’re left with 100. Note, the 200 is calculated for a 2 month period, so split the remaining 100 ,from the total 200, into 2. You’re left with 50 each month.
T=(C-100)/2 (T being 1 month) (C being the total cost/200)
Hopefully
6 over negative 10, because you just multiply the numerator and denominator by 2
2 +2 = 4 . The answer is 4.
I would say that there are 29 boys in the class.
