Question 5 On problem #18, which variable will be the easiest to isolate in order to solve the system using
substitution?
A: x, in the top equation
B: y. in the top equation
C: x, in the bottom equation
D: y, in the bottom equation
Can someone please please please help me!

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?