Decide whether a line with the given slope is upward sloping, downward sloping, horizontal or vertical

m= 4

a. horizontal

b. downward

c. vertical

d. upward

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Suppose a gym membership has an initial enrollment fee of $75 and then a fee of $29 a month. which equation models the cost, c, of the gym membership for m months?

How is this equation completed? i cannot find any examples in the book.