What is the answer to 7x+5-8x

A company builds wooden porches. The porches are built in rectangular shapes. How do the areas of the porches change when the lengths change?

Evaluate the expression 7^2 + 3 (5.2 - 2.8)

67=-9t-5 what's the value of t

What is the inverse of f (x) = 6x - 24

How much do you need to substract from 57/10 to make 5?

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.