Bianca makes an error when she tries to write an expression equivalent to 12+15(3-y)-10y. explain what she did wrong. 12+15(3-y)-10y 12+45+15y-10y 57+5y ​

idk what the answer is but for the points

step-by-step explanation:

the first one and the second one that's the answer

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

it would be a on edgenuit y

the diagram below is your final answer

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.