What is 4x squares minus 81

2. A chain 5 links long is joined to a chain 7 links long. How many links long is the resulting chain?

What is the equivalent expression for 8b-4b

What is the volume of this right triangular prism?

If f (x) = 4x-3 / 7 what is the inverse

Two negative integers are 8 units apart on the number line and have a product of 308. which equation could be used to determine x, the smaller negative integer? x2 8x - 308 = 0 x2 - 8x 308 = 0 x2 8x 308 = 0 x2 - 8x - 308 = 0

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.