Are the following expressions equivalent 5(2z+3) and (5x2)+(z+3)

Is the product of seventeen negative numbers, positive or negative ?

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.

M. xyz =radians. covert this radian measure to its equivalent measure in degrees.