Classify the type of this chemical reaction: 2h2(g) + o2(g) → 2h2o(g) a) combustion b) decomposition c) neutralization d) synthesis

Reflect the point (7,0) across the y-axis

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Which of these angles are supplementary? a. 100o and 90o b. 78o and 102o c. 54o and 146o d. 12o and 78o