Story problem: Mount Saint Helens, a volcano, erupted on May 18, 1980. Before the eruption, Mount St. Helens was 2,950 meters high. After the eruption, it was 2,550 meters high.

Before the eruption, how many kilometers high was Mount St. Helens?

What is 2x - 3y = 8 (y)

Samuel used 1/5 an ounce of butter to make 1/25 of a pound of jelly. How many ounces of butter is there per pound of jelly?

A line horizontally drawn from the center of the circle. a. Radius b. Axiom c. Circumference d. Vertex

There are 2,250 benches in a city. The number of red benches is 350 more than the number of blue benches. How many red benches are there in the city?

Every day, the Webster Pet Store uses 1/2 of a bag of dog food to feed the dogs. How many days will 3 1/2 bags of dog food last?

A car is 200 km from its destination after 1 hour and 80 km from its destination after 3 hours.

Consider the equation x-3=5. a. Multiply both sides of the equation by a constant, and show that the solution set did not change. Now, multiply both sides by x. b. Show that x=8 is still a solution to the new equation.

A gardener uses a tray of 6 conical pots to plant seeds. each conical pot has a radius of 3 centimeters and a depth of 8 centimeters. about how many cubic centimeters of soil are needed to plant the full tray? round to the nearest cubic centimeter.

The price of 2 bananas are $1.00. How much would 7 bananas cost?

students' scores on an anthropology test have a mean of 31 with a standard deviation of 3.5 if rochelle scores 20 on her test, how many standard deviations away from the mean is her score