Tonya went out to eat with her friends. The bill was $53 and they want to leave a 20% tip. What is the total Tonya and her friends need to pay?
Explain how you found your answer.

marking as brainliest ^^

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.