A turtle walks 7/8 of a mile in 50 minutes. What is the unit rate when the turtle’s speed is expressed in miles per hour? To find the turtle’s unit rate, Meredith wrote the following complex fraction. Explain how the fraction 5/6 was obtained. ( 7/8 ) ( 5/6 ) Determine the unit rate when the turtle’s speed is expressed in miles per hour.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]