How many cubes with edge lengths of 1/2 inch are needed to fill this cube?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

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.

Find the common ratio of the sequence. -4, 8, -16, 32, a: -12b: -2c: 12d: -1/-2