PLS NO GUESSING There are 40 people in a line. If 10 people in the line have blonde hair, 15 people in the line have brown hair, and 15 people in the line have red hair, what is the probability that a randomly chosen person in line has blonde hair?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.