7 The speed s can be found by dividing the distance d by time t. It took Kevin 3 h traveling at an average speed of 45 mi/h from his house to Cooperstown.
What is the distance between Kevin's house and Cooperstown?

Step-by-step explanation:

3 hours at 45 mph means he traveled 135 miles. The distance between Kevin's house and Cooperstown is 135 miles.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b