Explain if 12.1 is rational or irrational

Sari has 3 times as many pencil erasers asSam. Together they have 28 erasers. How many erasers does Sari have?

3. John took 45 minutes to bicycle to his grandmother's house, a total of four kilometer What was his velocity in km/hr? Info for train to travel the distance between two cities at a velocity of

Is (x - 2) a factor of f (x) = x3 - 2x2 + 2x + 3? Use either the remainder theorem or the factor theorem to explain your reasoning.

What is the solution of a system defined by 5x + 2y = 30 and - 5x + 4y = 0?

4a+6c = 3b-4r/3d, for a

A theatre can hold 200 people. Two groups rented out the theatre. The first group has 92 people and the other has 107 people. Are there enough seats for everyone?

Tyler is using the distributive property on the expression 9 - 4 (5x - 6). Here is his work: 9 - 4 (5x - 6) 9 + (-4) (5x + -6) 9 + -20x + -6 3 - 20x Mai thinks Tyler's answer is incorrect.

Here's a number Forty-three thousand five hundred seven how many digits will it have when it's written in standard form?

What is the equation in slope intercept form for (1,0). Slope 1

Where would you place 2.5 on the Venn diagram? A) integers B) natural numbers C) rational numbers D) irrational numbers