Kevin received 20 text messages on his phone and 12 were from his mother. What percent were NOT from his mother?

In the 30-60-90 triangle below side s has a length of and side r has a length

Which of the following are accepted without proof in a logical system? check all that apply.

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?