How do you figure 12 is 30% of what number

The table represents a function. what is f (-2)

Tom ate four more pieces of fruit than Janet. Sylvia ate twice as many pieces of fruit as Tom. If x represents the number of pieces of fruit that Janet ate, write an expression to represent the amount of fruit that Sylvia ate.

A rental car company charges a base fee of $40 plus $0.25 per mile for the first 100 miles the car is driven. The company charges the same base fee plus a reduced price of $0.18 per mile for cars driven over 100 miles.

At top speed, a rabbit cover 7 miles in 12 minutes. If a rabbit could continue at this rate in definitely, how long would it take the rabbit to cross the 220-mile expanse of the mojave desert

Gerald says that most common measurement is 14 quartwr inches. Is he right? why or why not?

How many grains of wheat should be placed on square 13?

Can you solve for x 6y=24-3x

A rectangular prism has a height of 12 cm and a square base with sides measuring 5 cm. A pyramid with the same base and the height of the prism is placed inside the prism. What is the volume of the space outside the pyramid but inside the prism?

Which unit of measure would be the most appropriate to measure the capacity of a bottle of nail polish?

A city of 100,000 people is growing at a rate of 5.2% per year. Assuming this growth rate remains constant, estimate the population of the city 5 years from now.