Sakeem is a landscape architect. When he creates a lawn, his supplier charges $0.43 per square foot for sod. Sakeem charges his customers $2.00 per square foot to lay the sod. The profit Sakeem makes when creating a lawn varies directly as the number of square feet of sod he lays. Create an equation to show Sakeem’s profit when laying sod, where y is the profit and x is the number of square feet of sod. Recall that profit is the difference of the amount earned and the amount spent.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

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.