The amount of paper in square yards used weekly by the big city newspaper is approximately how many times more than the amount used by the small town newspaper

small town : 8.0•10^4
big city: 4.0•10^11

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earn $75 in interest. how much interest will she earn during the following year?