Are they all correct ? and with the number 4 ? you

Arectangle has an area of 54 square feet. if the length is 3 feet more than the width, find the dimensions of the rectangle.

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer