someone please help quick i dont remember how to do this because every time i open a quiz or test my mind totally wipes lol

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?