Which situation explains how a credit becomes a debt?
a) a buyer purchases furniture on credit, and then owes a debt to the furniture store.
b) an electronics store extends credit to a buyer, and then owes a debt to the buyer.
c) a mechanic exchanges services with a plumber, and incurs a debt to the plumber.
d) a farmer purchases used equipment in exchange for a share of the crops grown.

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

What is the value of x in the following equation. -x ^3/2 = -27

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?