Find the sum and express it in simplest form.
(2x - 8C + 5) + (-x + C - 8)

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

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

The half-life of a certain material is 0.004 second. approximately how much of a 20-gram sample will be left after 0.016 second? a. 5 grams b. 16 grams c. 0.32 gram d. 1.25 grams