Please help me with this, im not sure what to do

Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68