Mr. lester needs to store 23 science books for his class on a shelf @ the back of the classroom. each science book is 2.6 centimeters thick. if mr. lester stacks the science books on top of each other on the shelf, how tall does the shelf have to be?

answer: its the third option.

step-by-step explanation:

i just took the test.

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