Ryan and Taylor are both saving money to buy new video game equipment. Ryan’s savings plan can be modeled by the function s=15m+50 where m represents the number of months since Ryan started his plan, and s represents the amount of money saved in dollars.

0.02040816326

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.