In 1990, seven in ten adults in the U. S. own an answering machine. In a random sample of 10 adults, what is the probability that the number owning answering machines is a) exactly six

b) atleast seven

c) more than five

d) at most four

these are individual questions, not answers.

first correct answer gets brainliest.

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)