Solve 49÷3 using an area model and the standard algorithm

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)