Find the volume of the square prism measuring 6km along each edge of the base and 5 km tall (no units)

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.