Multiply 5/9 by (3/7) with a power of ^2

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?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?