A sphere has a surface area of 150 square millimeters. Find the length of the radius of the sphere. Round your answer to the nearest hundredth. Use 3.14 to approximate pi

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?