The table below shows the probability distribution of students in a high school with 1500 students. What is the expected value for the age of a randomly chosen student?

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression