What 2 numbers add up to - 80 and add up to 20

For 30 persons or fewer $10 per person. For every additional person $9 per person. Irene paid the company $390 for her department event. How many people did she cater for?

If Santa was to deliver to every person in the world, 7.6 billion people. Making 822.6 deliveries per second, traveling 650 miles per hour.

The null and alternate hypotheses are: H0: μ1 ≤ μ2 H1: μ1 > μ2 A random sample of 29 items from the first population showed a mean of 112 and a standard deviation of 9.

How are the substitution and elimination methods of solving a system of equations similar

Two fractions between 2 and 3

There are 3 measures of music that are played 3 times in a song. If the first measure has 8 notes, the second measure has 16 notes and the third measure has 4 notes, how many notes are played throughout the song?

Find the value of k for which the given function is a probability density function. f (x) = 6k on integral (-1,1)

Solve :.5x - 3.5 = 3x + 4.5

In a recent survey of 440 people, 1/4 said they watched television every evening 2/5 said they watched five or six nights each week, and the remainder said they watched four nights a week or less

Identify the population being studied. The heights of 5 out of the 38 green bean plants at Mr. Lonardo's greenhouse. a. The 5 green bean plants at Mr. Lonardo's greenhouse. b. All green bean plants in greenhouses. c. All green bean plants at Mr.