Answer:
If you are rounding to the nearest tens the smallest number is 45. If you are rounding to the nearest whole number, the smallest number is 49.5
Answer:
y = -2x + 8 is the answer to the question
A) No one in the class studied more then 5 hours
=> 4x = 16 - 8
=>4x= 8
=> x= 2
in short the answer is 2