George is a coach of a tennis team. You like to purchase as many tennis ball's in tennis rackets for $1500 as he can the tennis rackets or 45 each in the tennis balls are $1 each write the inequality that represents the possible combination of tennis falls in tennis rackets George can purchase​

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051