In the diagram below, de and ef are tangent to o. what is the measure of ∠def? a. 58°b. 126°c. 63°d. 117°

If 20% of a number is 35, what is 50% of that number?

How do you write something in scientific notation?

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?