Is the following scenario proportional or not?

Mrs. G. bakes 6 cookies every 10 minutes.

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

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)