What is a reasonable estimate for the height of a classroom door in meters

Amtrack's Downeaster train leaves Biddeford, Maine, at 6:42 A. M., Mondays through Fridays. It arrives at Boston at 8:50 A. M. If the train breaks down, find the probability that it breaks down in the last 35 minutes of its run.

Simplify the expression: -4a2b3 (-2a6b4 + 5a2b3 - a)

What number is 20% of 199?

Categorize each of the following equations as a linear equation in one variable or not. 2x + 6 = 5 5x - 9 = 8x - 4 5x = 2y - 8 6b + 4 = 2 6 + 4 = 10

Two less than three times the width of a rectangle to the length. The are of the the rectangle is 65 square ft. What is the length of the rectangle?

Simplify. 4n + 12 + 7n

What is the minimum value of f (x) = x2 - 10x + 19? -10 -6 19 5

What is the value of n in the simplified expression? (4k7) 3 = 4n · (k7) 3 = 64k21

What is the measure of angle ACE shown in the diagram below? 180° and 30°

Two sisters drive 144 miles on a camping trip they averaged at least 32 miles per gallon on the trio describe the number of gallons of gas they used