Tania flips a coin three times. The coin
lands on heads twice and on tails once,
not necessarily in that order.

What is the common difference in the following arithmetic sequence? 7,3,-1,-5

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.

In the rectangle below ac=30 units what is de