Solve the system of equations by substitution.

4x-3y=18

x+2y=-1

What is the radius of a circle with circumference 17 mm? Round to the nearest tenth. Use 3.14 for radius

What are the next three terms of the following are arithmetic sequence: 13,24,35 ...

How to write as a percent 3/5

Graph and check to solve the linear system x+y=3 -2x+y=-6

A scientific hypothesis has two important qualities. The first is that it is testable. What is the second?

Jorge is baking cookies. The recipe makes 144 cookies. If Jorge and his 5 friends want to divide the cookies evenly, how many cookies will each person get?

For the schools sports day a group of students prepared 21 1/2 lbs of lemonade at the end of the day they had 2 5/8 lbs left over how many lbs of lemonade were sold

The area of a rectangle is 48 square centimeters. The length of the rectangle is 8 centimeters longer than the width. Which equation models this situation? A. 8w=48 B. w+8w=48 C. w+8=48 D. w (w+3) = 48

Tanya drove 312 hours and used 13 tank of gas. For how long could Tanya drive using 12 tank of gas? In simplest form.

What are you finding when you take the derivative of a function?