Selena is buying an audio system for her car. she can choose among 3 types of stereos, 4 kinds of speakers, and 2 kinds of amplifiers. which describes how selena can show her options?

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?