Cannonballs are stacked in a pyramid shape with a triangular base of 5 cannonballs on a side. How many cannonballs in all are in the stack?

Charlie tosses five coins.what is the probability that all five coins will land tails up.

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.

Graph the system of equations. { x-y=6 4x+y=4use the line tool to graph the lines. where do i put each point?