How much will the total cost increase for each additional bottle of water purchased? Compare this value to the
constant of proportionality.

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?