How many white keys does a standard modern piano have? 1=102 2=52 3=88

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two