Answer:
D = 35 minutes
Step-by-step explanation:
10 x 4 = 40 minutes early from monday to thursday
15 x 5 = 75 minutes wanted time to be early monday to friday
75 - 40 = 35 minutes early on friday to reach the total weekly time early
D
10 * 4 = 40 + 35 = 75 / 5 = 15
