A boat lies at anchor in a harbor. The boat has a ladder over the side just touching the water. The distance between each rung on the ladder is one foot and the tide rises at the rate of
six inches per hour. At the end of three hours, how many rungs will be covered?
Note: The bottom rung is just touching the water.

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

9/10 divide by -3/15 as a mixed number