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Each summer, Gina picks blueberries at a local berry farm. She can pick 5 1/4 pounds of blueberries each 1/3 hour. Gina is paid $0.75 per pound of berries that she picks. How much does Gina make per hour?

$21.00 per hour
$11.81 per hour
$1.31 per hour
$15.75 per hour

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

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.