(15 points)(geometry) plz help i need this turned in

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?

What expression is equivalent to 42x-56y

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)