Can you help me please

Find the value of the variable and the length of each secant segment.

Multiply. write your answer in simplest form. 3/8 x 5/7

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ