Ronny is selling coffee mugs for $5.50. so far, he has earned $385.00. ronny needs to earn more than $484.00 in order to meet his sales goal. how many more coffee mugs, x, does ronny need to sell in order to reach his sales goal? which number includes the fewest number of coffee mugs that ronny can sell and still reach his sales goal. linear inequalities

The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.