ok so i know this isn't an academic question (sorry) but how do i get more brainliest answers? i only need 50 more to reach genius!!!

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?