If a=[4 2 -7 -3] and b=[ -3 4 -1 5] what is the solution to the equation ax=b

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

What is the value of x in the following equation. -x ^3/2 = -27

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6