Greg works at a video store he earns $7 an hour plus $5 for each memebership he sells write a formula that will greg determine how much hell will earn in one week let a=amount earned and h=hours worked in one week and m=number of membership sold in one week

he earned 78.75 in interest.

step-by-step explanation:

explanation:

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.