How do i do this problem 20/1*1/2

Triangle DEF is similar to triangle PQR. Side DE measures 3, side EF measures 7 and side FD measures 9. Side PQ measures 5x - 25 and side QR measures 6x + 4. Find the value of x

For each cubic function below, one of the zeros is given. Express each cubic function in terms of linear factors. a) f (x) = 2x³-9x²-53x-24; f (8) = 0b) f (x) = x³+x²+6x+6; f (-1) = 0

What is 1+1 equal to

When you divide a fraction less than 1 by a whole number greater than 1 is the quotient less than greater than or equal to the dividend?

Describe the graph of the linear function whose equation is y=3x+3/2

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.