Area of rectangle:

Area is 21 square units. The Width of rectangle is 5 less than 4 times the length. Find the Dimension.

Write the formula and answer MUST SHOW ALL WORK!

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

Someone answer this check out the image!

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500