Gina has 7 4/8 feet of silver ribbon and 5 6/8 of gold ribbon. How much more silver ribbon does Gina have than gold ribbon? Enter your answer as a mixed number.

Write the equation in logarithmic form 8^x=64

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?