Do a line and a point always, sometimes, or never intersect? explain.

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

Im so bad at fractions they are not my best math thing to work on

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?