The first three terms of a geometric sequence are as follows. 4, 20, 100
Find the next two terms of this sequence.

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.