Please help!! Math 4 class! "Practice Creating and Using a Probability Distribution Table"

∠1 and ∠2 are complementary. ∠1=x°∠2=(3x+30)° select from the drop down menu to correctly answer the question. what is the value of x? . a.15 b.25 c.30 d.40 e.55

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form