John is asked to roll a fair number cube, numbered from 1 to 6, and toss a balanced quarter simultaneously. What is the probability that he will roll a 2 and the quarter will come up tails?

Asphere has a diameter of 10 in. what is the volume of the sphere?

Tan198=asin164=? how to solve this? ?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.