Indicate which property is illustrated in Step 2.

Step 1 9 + (5 + 7) + 0 = 9 + (7 + 5) + 0

Step 2 = (9 + 7) + (5 + 0)

Step 3 = (9 + 7) + 5

Step 4 = 16 + 5

The difference of two and a number is at least negative one

18 is 32% of what number?

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To open a combination lock, you turn the dial to the right and stop at a number; then you turn it to the left and stop at a second number. Finally, you turn the dial back to the right and stop at a third number.

A bag has 10 yellow marbles and 4 blue marbles. Half of the blue marbles are made of plastic. A marble is selected at random from the bag what is the probability that it is a blue, plastic marble? Write your answer as a fraction in simplest form.

The stock of Company A lost $4.25 throughout the day and ended at a value of $63.75. By what percentage did the stock decline?

What is the period of 913 in 913,256

A bank contains 27 coins consisting of dimes and quarters. the coins have a total value of $4.95. Find the number of dimes and quarters in the bank.

what does a + a equal to

Mr. Santos is carpeting his living room. The room measures 21 feet by 15 feet. The carpeting costs $9 per square foot. How much carpeting will he need (in square feet), and how much will it cost?