Scott and Trevor each have some quarters. Trevor has 9 more quarters than Scott. The combined value of their quarters is $8.75 cents. How many quarters does Trevor have?

What is the number 321,000,000 in scientific notation? also what is the number? ?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

Graph each quadratic function and identify its key characteristics. f(x) = x^2 - 2x - 3