Answer:
B and D
Step-by-step explanation:
Answer:The circumference of a circle is directly proportional to its radius. The ratio between a circle's circumference and its diameter is pi, a constant that equals approximately 3.142. The circle's diameter, in turn equals twice the radius. A regular solid that has a circle as a face is called a cylinder.
Step-by-step explanation:
Double negative (subtract sign) becomes a positive (add sign) so the answer is -4
Answer:
1/20 of 2 minutes = 6 seconds