Rory is staying in a cabin on a hill 300 feet above sea level. She walks down the hill to the water's edge. The
equation of her average change in elevation over time
is e = 300 – 10t, where t is the time in minutes since
she left the cabin, and e is her elevation with regard to
sea level. Which values are viable points, and what are
their values in the table relating t and e?
a =
b =
C=

I'm confused on this could anyone me and show me what i need to do to solve it.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Af jewelry box is in the shape of a rectangular prism with an area of 528 cube inches. the length of the box is 12 inches and the height is 5 1/2 inches. what is the width of the jewelry box