Step 1: She multiplies equation (3) by 3 and adds it to equation (1). Step 2: She multiplies equation (3) by - 7 and adds it to equation (2). Which statement explains Galena's mistake?

In a certain Algebra 2 class of 23 students, 7 of them play basketball and 12 of them play baseball. There are 9 students who play neither sport. What is the probability that a student chosen randomly from the class plays basketball or baseball?

4. Gregory has a vegetable garden. This year, he gives two tomato plants to friends. Next year, those two friends each give away two tomato plants. The following year, those four friends give away two tomato plant.

A sandwich shop is ordering apples and grapes to make chicken salad. Apples cost $2.19 per pound and grapes cost $2.60 per pound. If they ordered a total of 20 pounds of apples and grapes and pair $35.80. How many pounds of grapes did they order?

How many hours are in 270 minutes

What is 7 divided by 5,857

Explain how you know that square root of 30 is between 5 and 6

Paul planted 20 onion bulbs. Three-fourths of the bulbs sprouted. How many onion plants did Paul have?

Geometry; A circle has 360 degrees. If the circle is divided in half, how many degrees does each half measure

Use Order of Operations. (2/5 x 30) x 6 to the second power - 3 to the second power

What is the frequency of the function y = cos5x?