Is the square root of 154 rational or irrational?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

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?

Factor the polynomial by its greatest common monomial factor.