Two angles have a common vertex but no common side. How can you tell whether the angles are vertical angles?

Evaluate the exponential function when x=2 and y = - (1/3) ^x

Express 16 as a difference of two prime numbers

Problem: 2x+3 (x-4) = x-20

As a salesperson you are pay $50 per week plus $2 for sale this week you want your pee to be at least $100 what is the minimum number of sales you must make to earn at least $100

Let X = the number of nonzero digits in a randomly selected 4-digit PIN that has no restriction on the digits. What are the possible values of X? 0, 1, 2, 3, 4 0, 1, 2, 3, 4, ... 1, 2, 3, 4, ... 1, 2, 3, 4 0, 1, 2, 3

Keira goes shopping at a supermarket

Give the LCM of 12 and 9

How do you solve for D to the 7th power times D to the 9th power

3. Brinn's rectangular kitchen has an area of 81 square feet. The kitchen is 9 times as many square feet as Brinn's pantry. If the rectangular pantry is 3 feet wide, what is the length of the pantry?

Highest place value for 54