Are these following equations linear?

y = 4x cubed

y = 3x-5

y = 3 to the exponent of x

y = - x cubed + 7

If a car is worth 35000, it depreciates $2500 year, in how many years will it be worth $9000

If tyler deposits $2000 of the $3200 he has earned in a account that pays 8% interest compounded quarterly. What is the formula you would right for each four quarters, and what would you get each quarter. Example Principal+Compound Interest

Which is the value of 3b 2 - b when b=5?

Work out the reciprocal of 3.5

What is the value of x in the equation 1/5x - 2/3y=30 when y=15

Jack made 50% more smoothies than yesterday. If he made 30 smoothie today how many did he make yesterday?

Mr. Ramirez has enough money to fence one of his rose gardens, how many feet of fencing will he need if both gardens have the same perimeter

David saves $175 each month for the first 5 months. Then he saves $225 each month for the next 5 months. What is the average amount that David saves each month

Which of the following equations is not equivalent to the others? y = - 4 + 3 x y = - 3 x + (-4) y = - 3 x - 4 y = - 4 - 3 x

Read the following passage from the Odyssey: Square in your ship's path are Sirens, crying beauty to bewitch men coasting by; woe to the innocent who hears that sound!