The value of R varies directly with S. If r=-1/2 when s=5 which direct variation represents this relationship?

Which of the following represents the range of the graph of f(x) below

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000

Write the equation in logarithmic form 8^x=64