3. 2/7x-1/14x=-3

5. -3/4x+1/4=1/2

6. 1/4x+2=3/4

i don't understand these

Reflect the point (7,0) across the y-axis

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?