Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Cody, an office manager, needs to find a courier to deliver a package. The first courier he is considering charges a fee of $15 plus $3 per pound. The second charges $5 plus $4 per pound. Cody determines that, given his package's weight, the two courier services are equivalent in terms of cost. How much will it cost? What is the weight?

55? i think maybe

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.