What is (2x+3) (x-4) as a polynomial

According to the Rational Root Theorem, - 7/8 is a potential rational root of which function? f (x) = 24x7 + 3x6 + 4x3 - x - 28 f (x) = 28x7 + 3x6 + 4x3 - x - 24 f (x) = 30x7 + 3x6 + 4x3 - x - 56 f (x) = 56x7 + 3x6 + 4x3 - x - 30 Just the answer!

Harper wrote the expression 15-6+7 to represent "15 minus the sum of 6 and 7". Evaluate 15 - 6 + 7 and then exposing why Harper's expression is incorrect

3a + b = 225 b = a - 15

What is the value of x in the equation 4 x plus 8 y equals 40, when y equals 0.8? 4.6 8.4 10 12

Find the 4th term in the sequence with the following definition: a1=3 an=4an-1+2

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.