Can someone help me with this pls

What is the product of the radical expression. (7-2square root) (8+2 square root)

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.