Dina started swimming at 3:45 p. m, she swam until 4:37 p. m. How long did Dina swim?
Dina swam for minutes.

Find the sum of the following series. round to the nearest hundredth if necessary.

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.