Which of the following describes an irrational number?

Nine more than four times a number is the same as one less than twice the number. find the number?

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount