A shopper wants to ensure she has enough cash to purchase a $25 cell phone, so she asks a clerk what the total will be with the sales tax included. The clerk tells her the total will be 27.25. What is the sales tax percentage?

A body was found at midnight (12 a. m.) in a warehouse where the temperature was 55F. The medical examiner found the temperature of the body to be 66F. What was the approximate time of death? Use Newtons law of cooling with k=0.

Adam uses coconut milk for the dessert. The coconut milk is in a can but he doesn't know how much the can holds. Using the formula V = π r2 h, work out how much coconut milk is in the can. Use 3 as a value for π.

Solve for x & check the solution: 7x+6=20

What is 5+5 plus the diameter of 2

What is the domain of the function f (x) = x-16? f (x) = x-16? The function is defined when f (x) is greater than or equal to 0, therefore the domain is f (x) ≥0. The function is defined only when x-16 is greater than 0, therefore the domain is x>16.

The beginning balance of a credit card account is $500. The monthly interest rate is 0.012. If a payment of $100 is made on the last day of the month, what is the ending balance?

If 25% of an item is $17.00 what is the original price?

Slope and y intercept

A website requires a 7-digit password. How many different passwords can be made using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 if each number can only be used once? A. 120 B. 70 C. 5,040 D. 604,800

What is the solution for x in the equation? 3x - 42 = - 6x + 21