Can someone me on this question i'm not good in math.
kenneth drove 197.65 miles in hours. what was his average speed?
(a) 53 mph
(b) 66 mph
(c) 61 mph
(d) 59 mph

What are the domain and range of the function? f(x) = -4 (sqrt)x

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'