FIRST ANSWER RECEIVES BRAINLIEST Find the product of (4z^2 + 7z – 8) and (–z + 3).

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

Renee hiked for 6 3/4 miles. after resting, renee hiked back along the same route for 5 1/4 miles. how many more miles does renee need to hike to return to the place where she started? represent your answer as a simplified mixed number, if necessary.