What is | -9| = ? | 13| = ? |-21| = ?

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.