several schools reported the number of students who received a flu vaccine in a year and the number of cases of the flu amongst their students that year. a scatter plot was made with a trend line that had an equation of y=-1/4x+85 where y is the total number of cases and x is the total number of students who received a flu vaccine

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.