Which ordered pair needs to be removed in order for the mapping to represent a function

(-2, - 1)

(1, - 3)

(1, - 3)

(-3, - 4)

Find the total cost of a spa treatment is $42 including 6% tax and 20% tip

What is 0.121212 expressed as the quotient of two integers in simplest form?

Write each as a fraction 42 percent

The temperature of a freezer started at 18ºC. After cooling for a few hours, the freezer had a temperature of - 12ºC. What is the difference between the new, colder temperature and the original temperature?

Mt. McKinley elevation is 30,321.5 K2 elevation is 28,251.31 Tupungato elevation is 22,309.71 Dom elevation is 14,911.42 1. Mt. Everest is 8,707.37 feet higher than Mt. Mckinley. What is the elevation of Mt. Everest? 2.

Juan's company spent $2,350 on an event. They spent about $1,500 on food and about $900 on entertainment. What could the actual cost of the food and entertainment be?

Gregory sees an $80.00 jacket on sale at 30% off. How much will it cost after a 7% sales tax? $56.00 $59.92

What is the volume of a cylinder With base radius 4 and height 5

What expression is equivalent to (2x4 y) 3?

If two pounds will serve 5 people how many pounds will serve 13 people