Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes. if 66 adult smartphone users are randomly selected, find the probability that exactly 44 of them use their smartphones in meetings or classes. i figured out that n=6, x=4, and p=0.54.  i think i am supposed to use the binomial formula but i don't know how to. 

Based on the graph, what is the initial value of the linear relationship? a coordinate plane is shown. a line passes through the y-axis at -2 and the x-axis at 3.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.