Find the number of possible outcomes in the sample space.

A pizza stand offers both hand-tossed and pan pizza. Customers can add any combination of the ten available toppings.

A jewelry store sells gold and platinum rings. Each ring is available in ten styles and is fitted with one of eight gemstones.

The chess club must decide when and where to meet for a practice. The possible days are Monday, Tuesday, Wednesday, or Thursday. The possible times are 3, 4, or 5 p.m. There are ten classrooms available.