The answer is 19.. substitute -1 into the function whenever you see x put -1 there. This implies that 3+16 =19
1 way is (100 divide by 5) +(35 divide by 5)
2 way is (50 divide by 5) + (85 divide by 5)
If the gym is a square with 17 meters sides, its area is given (as any other square) by the square of the side:

So, the area of the classroom is

We can deduce the side of the classroom only assuming that it is a square as well: if this is the case, the side of a square with given area is the square root of the area, so we have

Answer:
vas tu trou Vera sure mention la responses correct