On marys walk, she covered the 3 mile distance in one hour. however, the return trip took an hour and a half. what was her average speed?

Step-by-step explanation:

Speed = distance/time

Speed= 3/1= 3miles/hour

Return trip

Speed=3miles/1.5hour=2miles/hour

Average speed= initial + final trip= 2miles/hour+3miles/hour, then divide by 2

= 5/2=2.5miles/hour

hreryryrranswer:

step-by-step explanation:

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.