How do I solve 3x-7y=63 and 4x+3y=-27by addition?

What is 47% of 164 while using a fraction to estimate the percent of each number.

If you are at sea level, water boils at 212F. What is the temperature in degrees Celsius?

What can you tell about the mean of each distribution

The square of a number minus 5 equals 220. What is that number? The square of a number plus the same number is equal to 306. What is that number?

Consider a disease whose presence can be identified by carrying out a blood test. Let p denote the probability that a randomly selected individual has the disease. Suppose n individuals are independently selected for testing.

Which table represents a linear function? -3 -2 -5 AWN 12 24 -4 -2 0 - 4

What is the greatest common factor of pq5 and pq2

3 (.25) power unknown is greater than or equivalent to 9.16

Which expression lists the three consecutive integers starting with a number x? A. x - 1, x, x + 1 B. x + 1, x, x + 2 C. x, x + 2, x + 4 D. x, x + 1, x + 2

Which of the following best describes the solution to the equation below? 8x + 5 = 8x + 5