Determine which of the following expressions requires combining like terms before it is considered to be in its simplest form. Select all situations that apply.

4x + 3y - 7x

a2 + a2 - b

5y - x

a2 + a2b

-5w2 + y - 4w2 - 8y

9a+6s find the total cost for 4 adults and 4 students

The sum of two or more vectors is called

The public debt of the Apex Republic is 6,578,116,932,196,034 Apex dollars, while its gross domestic product (GDP) is 19,338,189,233,851,794 Apex dollars. What is the Apex Republic's debt-to-GDP ratio?

Past records indicate that 15 percent of the flights for a certain airline are delayed. Suppose flights are randomly selected one at a time from all flights. Assume each selection is independent of another.

The mean score of a competency test is 65, with a standard deviation of 4. use the empirical rule to find the percentage of scores between 53 and 77. (assume the data set has a bell-shaped distribution.)

Show tow ways to evaluate a (b-c) for a=4, b=5, and c=3

Each type of fish thrives in a specific range of temperatures. The optimum temperatures for sharks range from 18 degrees Celsius to 22 degrees Celsius. Write an inequality that represents the temperatures where sharks will NOT thrive.

If angle 1 is 110°, what would the other angle measures have to be in order for m || n and allp? Angle 2 = Angle 3 = Angle 4 =

Which of the following is NOT true for a hypothesis test for correlation? Choose the correct answer below. A.

42/45 greater or less than 3/15