Alab has two bacteria cultures. culture a contains 8×10 to the power 4, and culture b has 4×10 to the power of 6 bacteria. how do the two cultures compare in size?

Natasha spent 1 1/2 hours on the beach. she fell asleep for 3/4 of the time she was on the beach and then woke up with a terrible sunburn.how many hours was natasha asleep on the beach?

Which fraction below is equivalent to 10/12?

Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?