Your overall grade will go down. I'd try to ask your teacher if you can make them up.
2 is the coefficient. Y is 2.5
B) 12.75
Just add them all together
10+15+14+8+18+11+12+12+10+10+17+16=153
The devide the anser by the ammount of numbers you added together
153÷12=12.75
Answer:
C
(8)(-5)
Just multiply, 8 x -5 = -40
