Which expressions equal 9 when x = 4 and y = 1/3? Select ALL that are correct.
2x + 3y
5 (x/2) - 3y
3x - 9y
x^2 + 6y
y^2 - 21x

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?