What is the following number in decimal form?
8.61 × 10 –8
a. 0.861
b. 0.861
c. 8,610,000
d. 861,000,000

Whats the name of the vertical axis

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?

In the diagram below,abc is congruent to dec what is the value of x