The answer will depend on what each pen is worth.
Minus 25 (5x5=25 if there is one minus then the answer is minus).
The 25 pens, because they cost 0.19 each, whereas the 40 pens cost 0.20 each.
1 minus 25/28 is 3/28
there are 6 pens in a pack an office buys 25 pack
There are 8 ounces in a half pound of anything.
25 minus 35 is -10.
-25 - 10 = -35
It is 205 minus 25 = 180
1 minus 25/28 is 3/28
-50
57,000 minus 25 percent is 42,750
It is 25 minus 9 = 16