Unlike terms displays terms which are not the same. x+2y would be the answer.
Step-by-step explanation:
3x-5=8x-60
55=5x
x=11
Approximately 68% of a normal distribution lies within one standard deviation of the mean, so this corresponds to students with scores between

.
Answer:
the one on the upper left with the triangular form
Step-by-step explanation:
all the others only represent one of the possibilities