Which best defines an algebraic expression?

a.
a number or a combination of numbers, variables, and symbols that represents a given value

b.
a letter or symbol that represents one or more numbers

c.
a mathematical statement showing that one quantity is not equal to another

d.
a number sentence that uses an equal sign to show that two amounts have the same value

Add 1/7 + -1/7 your answer should be reduced to its smallest form and should not be an improper fraction

What is the probability of rolling a single die greater than 4

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.