Ross drove 300 miles at r miles per hour and 360 miles at r+10 miles per hour. if the time needed to drive 300 miles was equal to the time needed to drive 360 miles, find the rates at which ross drove (express the time needed for each part of the trip as t=d/r)

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Write the equation in logarithmic form m^x=n

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?