Use the formula below to solve the given problem. In the formula, d represents the distance an object falls, in meters, and trepresents the time
that an object falls, in seconds. Do not include units in your answer.
A rock dropped down a well takes 4 seconds to fall to the bottom of the well.
What is the depth of the well?
va = t. 149
Answer here

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.