Olivia and Emma have a meeting at work at 9 a. m. Olivia is at her apartment 85 kilometers from the office, and Emma is at her home, which is 32 kilometers from the office. At 7:40 a. m., Olivia, driving at an average speed of 75 kilometers per hour, leaves her apartment for the office. At 8:25 a. m., Emma, traveling at an average speed of 55 kilometers per hour, starts driving to the office. How long after Olivia arrives does Emma get to the meeting? Round the answer to the nearest minute. Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected
A.12 minutes
B.19 minutes
C.33 minutes
D.10 minutes

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.