Luke L. owes $397.33 on his Visa account. He returns two items costing $29.18 and $ 36.71 for credit. Then he makes purchases of $45.00 and $96.91. .

What is the area of triangle abc if a = 8, b = 11, and c = 15?

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.

What is the area of the triangle 10 13 12