Find the length of the hypotenuse. a=20 in b=21in c=? SHOW WORK

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

In which form is the following function written? y = - 2(x – 3)(x + 5)

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585