What is the difference between an expression and an equation

A high school has 1,500 students. In a random sample of students, 10 own no pet, 18 own one pet, 14 own two pets and 8 own three pets or more pets. Predict the number of students at the high school who own one pet.

Brian is writing a paper that needs to be 20 pages long. He already wrote 8 pages and writes 4 pages each day. Write an algebraic equation to solve how many days it will take Brian to finish his paper. Let d equal the number of days

Take 47 subtract 6.55 add 0.22 multiply by 0.7

How many more barrels of gasoline then diesel were produced last year gasoline 34% diesel 29% total crude oil - 60 million barrels Total

Test scores on a statewide standardized test for a large population of students are normally distributed with mean = 9.44 and standard deviation = 1.75. Certificates are given to students who score in the top 2.5% of those who took the test.

Find the coordinates of the orthocenter of triangle ABC with vertices A (2, 6), B (8, 6), and C (6, 2). A. (5, 4) B. (1, 2) C. (6,4) D. (6, 8)

Square root 8y+1+5=1

80 % of _ games is 32 games

A truck drove 45 miles per hour it took 3 hours to travel between two towns what is the distance between the two towns

A fisherman is setting up a net 6 feet below the surface of the water. Each foot of the water screens out 40% of the light coming from the surface.