Just look at the pic and i'll give you points if you answer it bye

It costs 4.25 for 1 pound of roast beef. how much will it cost to purchase 2.5 pounds of roast beef? round to nearest cent

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?