The expression - x - 9x^2 + 12x^2 + 7 has 4 terms:
-x, -9x^2, 12x^2, 7
Like terms are:
-9x^2, 12x^2
18/30 simplifies into 6/10 which then is put in decimal form of 0.6
10 dollars i got this by finding 4 times 2 is 8 and half of 4 is 2 so it is exactly 10 dollars
Answer:
the answer should be 54.6 grams
