Apallet requires 2 minutes and 15 seconds to prepare for shipment, and 30 seconds to load on a trailer. how long will it take to prepare 40 pallets and load them onto a trailer

2 min 15 sec + 30 sec = 2 minutes 45 seconds per pallet

2 minutes 45 seconds

45seconds divided by 60 seconds = 0.75

 so 2.75 minutes per pallet

2.75 x 40 = 110 minutes

110/60 = 1.833 hours = 1 hour and 50 minutes

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: