Find the volume of a hemisphere when the diameter is 24 cm

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

Which shows a reasonable estimation for 124% of 42 using the distributive property?

Of the following, which statement or statements accurately reflect a way in which credit can be safer than cash? i. if your credit card gets stolen, you can cancel it and get your money back. ii. it is harder to lose a single credit card than a large number of bills. iii. if a merchant does not honor the agreement, you can call the credit company and dispute the charges. a. i and iii b. ii only c. iii only d. i, ii, and iii