. Jose is training for a half-marathon. Each
week he runs x miles per day for 5 days.
For 3 days of the week, he runs at a speed
of 8 minutes per mile. For 2 days he runs
7-minute miles.
a. Write an expression to represent the
amount of time, in minutes, that Jose
runs in 4 weeks.
b. Write an expression that is equivalent to
the expression you wrote above. Explain
how you know the expressions are
equivalent.