Which of the following numbers dosen't belong? 64,16,36,32,8,4

What is the value of x? enter your answer in the box. photo attached.

Prove that 16^4-2^13-4^5 is divisible by 11.

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )