Bret is examining a line with equation y = 3x -7. he says that the y-intercept of the line is 7. is he correct? . explain.

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.