I presume this is 25 = 32 stripped off it's formatting!
For a positive integer n, xn or x^n (or even x**n in some old usage) is mathematical notation for x*x*...*x*x where there are n occurances of x. [xn is also defined for negative, fractional etc values of n but that need not concern us now.]
Doing the multiplications one at a time,
25 = 2*2*2*2*2 = 4*2*2*2 = 8*2*2 =16*2 = 32.
-7
25% of 128 is 32
32
32
32% = 8/25
Yes. 8/25 = 0.32 = 32%
-25
32%
It equals negative 25!!
8/25 is equal to 32/100 which equals 32%
36+4=40 40-8=32 32-25 equals=7 answer
Correct!