The answer is 80! If you ever see any angle like that where it’s just two lines (I don’t know how to explain it/forgot what it’s called) it will be the same as the other angle.
<span>4/100×50 is your answer $2</span>
The zeros of the given functions are shown on the attached picture.
Some examples of multiples of 2/5 are 4/10, 6/15, 8/20, 10/25, 12/30, and 14/35.
It's not specific enough to solve...so far it would only be f(3)