Solve the following system of equations by using the substitution method. x = 4 - 2y 4x + 8y = 16

A telephone technician charged $40.00 per hour plus a $45.00 service charge. Your fathers firm hires him to hook up his company's phone system. Find the total charges if it takes the telephone technician 4.5 hours to complete the task.

What is the y-intercept of the line y = - 7x + 1?

Which conclusion can be drawn from the dot plots below with regard to the number of hours spent on science homework and English homework on a certain week?

Whta is a linear regression equaton

As you ride a ferris wheel, your distance from the ground varies sinusoidally with time. When the last passenger boards the ferris wheel and the ride starts moving, let your position be modeled by the diagram provided.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.