The school board administered a math test to all students in grade
6
66 at High Achievers Charter School and determined that
15
%
15%15, percent of them were below grade level in math.
Based on this data, which of the following conclusions are valid?

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c,with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.