Change negative exponents to positive, then solve

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.