Emma bought 3 copies of a book on Amazon. The total cost of the 3 books were $9.00, which includes $1.50 in shipping. Which equation best represents the cost of one book? x/x is a fraction.
3x = 9
x/3 -1.50 = 9
3x + 1.50 = 9
9 + 1.50 = 3x

Is appreciated! graph the functions and approximate an x-value in which the exponential function surpasses the polynomial function. f(x) = 4^xg(x) = 4x^2options: x = -1x = 0x = 1x = 2

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days