Answer:
Find the place value you want (the "rounding digit") and look at the digit just to the right of it.
If that digit is less than 5, do not change the rounding digit but drop all digits to the right of it.
If that digit is greater than or equal to five, add one to the rounding digit and drop all digits to the right of it.
Step-by-step explanation:
-3x - 42 > 3 |+42
-3x > 45 |change the signs
3x < -45 |:3
x < -15 → x ∈ (-∞, -15)
The price for each one was 3 dollars :)
9 + 11x = 42
subtract 9 from each side
11x = 33
divide by 11
x = 3
6/2 is equal to 3 because 6 divided by 2 equals 3
