Use substitution to solve the system of equations.

y = 4.5x + 7.5

y = - 3.5x - 4.5

A. x = - 1.5, y = - 0.75

B. x = 1.5, y = 0.75

C. x = 1.5, y = - 0.75

D. x = - 1.5, y = 0.75

Given f (x) = 5x + 3, find f (-2).

You invest $7200 in two accounts paying 6% and 9% annual interest. at the end of the year, the accounts earn the same interest

22. The sampling distribution of refers to: (a) the distribution of the various sample sizes which might be used in a given study (b) the distribution of the different possible values of the sample mean together with their respective probabilities

What is the domain of f (x) = log2 (x + 3) + 2?

4 miles=__ cientos what doe cientos mean

The sum of two numbers is 44 and the difference is 16 . What are the numbers? Large Number: Small Number:

Which statement is correct? All integers are real numbers. All decimals are natural numbers. All rational numbers are whole numbers. All square roots are irrational numbers.

14 pounds 12 ounces = 32.45 kilograms True or False

Multiply (x + 5) (x - 6).

A bracelet is made of 14 red beads and 19 gold beads. A necklace is made of 84 red bead and 133 gold beads. Do the two pieces of jewelry have the same ratio of red beads to gold beads?