Answer:
y = -20
Step-by-step explanation:
Move all terms not containing y to the right side of the equation.
Therefore, that is how you got your answer: y = -20
she "grew" negative 3.25 inches
it is negative because she was taller in December than she was in January
Answer:
287 books
Step-by-step explanation
there was already 239 books. when the problem mentoins that Mary ADDS MORE books to the shelf, the operation is addition.
239+48=287