Samantha is training for a race. The distances of her training runs form an arithmetic sequence. She runs 1 mi the first day and 2 mi the seventh day. a. What is the explicit definition for this sequence?

b. How far does she run on day 19?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]