How to determine if a number is prime or composite

3x-4y=18 x 3y=-7 how do i solve this

In a test for significance of a pearson correlation for a sample of n = 30 individuals, you determine the critical value by using df = 29.

Mark gave away 8 pink balloons 11 green 24 purple and 5 blue balloons. How many did he gave away?

What is the area of the rectangle shown on the coordinate plane? O 8 square units O 14 square units O 16 square units O 24 square units

How can u tell when a rate is a unit rate

Evaluate the expression give the value of the variable ... 11+r; r=7

How many units of insulin are in 0.75 ML a regular U - 100 insulin

The probability that a person has a certain disease is 0.03. Medical diagnostic tests are available to determine whether the person actually has the disease.

Eight thousandths of thirty five million

14. You buy some furniture. The coffee table costs $189.99, the loveseat costs $249.95, the sofa costs $493.68, and 2 chairs cost $98.75 each. Sales tax is 7.25%. How much is your total purchase? $1,032.37 $1,213.13 $1,107.22 $1,131.12