Which are examples of variables?

+, -, -, -

x, y, ac

3,6,9, 12

4 + 6 - 2 = 8

A boy can read 5 pages in 15 minutes. A girl can read 15 pages in 1 hour. Explain how you can use a table or graph to find how much longer it will take the girl to read a 300 page book then the boy?

Clare estimates that her brother is 4 feet tall. When they get measured at the doctor's office, her brother's actual height is 4 feet, 2 inches.

Round 35,894 to the nearest thousand.

Peggy was taking a timed 90-question test. She was able to correctly answer 80% of the questions but had to skip the rest. How many questions did Peggy answer correctly?

What is the value of this expression (11-t) x[ (15+t) / t]

Stuart paid $48.00 for a new tennis racket, which was 64% of the original price. how much was the original price of the racket?

If one-third of a number is added to three-fourths of that same number, the sum is 26. Find the number. Select one: a. 12 b. 4 c. 8 d. 24

O u Didier What is the approximate area of the circle? Use 3.14 for it and round the answer to the nearest tenth. 17.3 in 2 34.5 in? 95.0 in2 379.9 in2

A verbal phrase for 6n-4 is

What comes next simplify 31/50,17/25,37/50,4/5, ...