Help me plz

Y=4x^2+x-1 solve using quadratic formula

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?

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.