Answer:
The answer is second one (-2)
Answer:
Some of the 50 students should have been assigned to a control group that used the in-person course
Step-by-step explanation:
I can't see QRST and I'm wondering how far below it's located.
But I do know that ALL of the angles in EVERY rectangle are
right angles ... 90° each.
So if QRST is really a rectangle, then any two of its angles
add up to (2 · 90°) = 180° .