1. An observatory is shaped like a cylinder standing on one of its bases with a dome on top. The diameter of the floor of the observatory is 64 feet, as shown in the diagram.
64 ft
Which measurement is closest to the circumference of the base of the observatory in
feet?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.