Two pulleys are connected by a belt. The radii of the pulleys are 3 cm and 18 cm, and the distance between their centers is 30 cm. Find the total length of belt needed to connect the pulleys.

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Mr. vector door is buying two new cowboy hats all together the hats cost $75.12 the second heart cost twice as much as the first hat what is the price of the more expensive at round to the nearest hundredth

What is the ordered pair that represents the linear inequality y< 6x-4