What is the value of f (4) if f (x) = 2x?

A. 2

B. 6

C. 8

D. 10

If two lemons cost 15 cents, how many can be bought for 60 cents

What is the slope of (2,9) (10,45)

The amount W of water used varies directly with the population 'N' of people. City 'A' has a population of 483,000 people and used 37.6 billion gallons of water in a fiscal year.

In a class, 60% of the students are girls. There are 18 girls in the class. How many boys are in the class? How many students are in the class?

Explain how √8+√2=3*2 1/2

180 is the least common multiple of 12 and

Lesley pours 1 carton of apple juice and 1 1/2 cartons of orange juice into another big jug, what is the ratio of apple juice to orange juice in lesley's jug Apple juice : orange juice

What is the value of the 11th term of the sequence 1, - 2, 4, - 8, ... ? 4,096 1,024 -2,048 -1,024

Which of the following best describes the two radical expressions below sqaure root 2 and sqaure root 3? a) they are perfect squares b) they are like terms c) there not like terms d) they are equal to eachother

How do I solve - 5 (u-3) = 4u-3