ast year, Sara's piano teacher charged $40 per hour for private lessons. This year, the teacher increased her rates by 10%. How much is the teacher charging per hour for lessons this year?

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

Solutions for 2x+7 less than or equal to 3x-5

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