You and your friend each collect rocks and fossils. Your friend collects three times as many rocks and half as many fossils as you. You collect 15 objects. Your friend collects 30 objects. How many rocks and how many fossils do you each collect?

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

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.

8.74 rounded to the nearest whole number