The sum of two numbers is 13. Their difference is 15. What are the two numbers?

Is the number 54 a multiple of 9 true or false

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 1, 2, 3, 4 0, 1, 2, 3 0, 1, 2, 3, 4, ... 1, 2, 3, 4, ...

Translate in an algebraic expression: 15 less a number t is four more than the sum of seven and t divided by two

Damari is constructing an equilateral triangle inscribed in a circle and has gotten this far. What is his next step?

Which polynomial expression represents the area of the outermost square tile, shown below? A square shaped tile with length x minus three is shown x2 + 6x - 6 x2 - 9x + 6 x2 + 6x - 9 x2 - 6x + 9

Circle two addends to add first. 3+3+4=

A quadrilateral has all sides congruent, opposite sides are parallel, and opposite angles are congruent. A) rectangle B) square C) parallelogram D) rhombus E) none of the above

24% of what number 30

How much is 20 cm in meters

Tyler buys 2 pairs of shoes every year. Which of the following expressions shows the total number of shoes he buys in z years? 2 + 2z Fraction z over 2 2 + z 2z