Simplify a - {b - [c - (d - e) - f] - g}.
User: Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)].

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

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