The processing speed of a certain computer is 10 to the power of 11 instructions per second. another computer has a processing speed that is 10 to the 3 power times as fast. how many instructions per second can the faster computer processes

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)