9. A police car drives with a constant speed of 52 miles per hour. How far can it travel in 255 minutes?

221 miles

Step-by-step explanation:

1 hour = 60 minutes

52miles/hour = 52miles/60 minutes

then:

52 miles  ⇔  60 minutes  

P  miles  ⇔ 255 minutes

P = 255 * 52 / 60

P =  221 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