Choose the expression that best models the situation. Joe started hiking at an altitude of 30 feet below sea level. He ended his hike at 40 feet above sea level. What was his change of elevation?

Choosing a booth location: your manager is sending two people to work at the conference. she wants a booth that will give your company good visibility for no more than 35% of the total budget ($3000). the conference coordinator just told you there are only five booths left. which booth will you choose? write the inequality that shows how much money you can spend on the booth simplify the inequality that shows how much money you can spend on the booth.

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.