Find the common ratio of the sequence -172, -86, -43, -21.5

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1