True or false, when n is an negative integer, n-n=0

Samir incorrectly found the distance between - 17 and 4 by following these steps: Step 1: |4 - (-17) | Step 2: |4 + 17| Step 3: |21| Step 4: The distance between - 17 and 4 is - 21.

An ultra-low flush toilet uses 1.6 gallons every time it is flushed. What is the pattern that describes the total water used after n flushes? How many gallons have been used after 10 flushes?

Ray has 25$ to spend and used $18 to buy a new DVD. Which integer best represents the situation of spending $18

The mean of the data set is 40 and one standard deviation is 5. About what percent of the numbers fall between 35 and 50?

Product of 5 and y added to 3

If you were to roll the dice one time what is the probability it will land on 4

Bruce has a job that pays 92,000 per year. How much will she pay in social security taxes? (Social security taxes are 6.2% of earnings)

The table below shows the proportional relationship between the weight of cereal, in ounces, and the number of packs of cereal: Number of Packs of Cereal Number of Ounces of Cereal 3 39 4 52 5 6 What is the constant of proportionality? 13 39 42 78

Find the quotient of 63.49 divided by 7.1, round to the nearest hundred

What is the slope of a line that is parallel to the line y = 3/4x + 2?