The area of base of a cone is 50cm2 and the curved surface area of the cone is 80 cm2. Find total surface area.​

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?

Graph the linear function using the slooe and y intercept

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39