For the pair of similar triangles fine the value of x. Triangle 1: 2x-6 and 39

Triangle 2: x+8 and 20
Can anyone solve this quickly

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0