Yes, stop signs are octagon shaped. So, true.
The answer is 42kg/45kg or 14kg/15kg
Answer: 8
The radical sign applied to a real number gives the principal square root, which is the positive square root in the case of a positive number.
Exactly 29.7, but you can't have 7/10 of a student so you round to 30. So 30 students are playing a music instrument because 330 times 0.09 is about 30
Answer:
y = 110/3 or 36.6 (the 6 is infinite so make a line over it when entering the answer)