A student wants to buy a new cell phone. Teen Mobile charges $15 a month plus $10 for every one gigabyte of data used. Bruh-rizon charges $30 a month plus $7 for every one gigabyte of data used. Use this info to identify the growth (or unit rate of change) and starting value for:

The unit rate. The gigabyte remains since it's already a unit value "Every one gigabytes." So,

Teen Mobile: $0.5 per day and $10 for every gigabyte. so, y = 0.5x + 10

Bruh-rizon: $1 per day and $7 for every gigabyte. so, y = 1x + 7

Explanation:

Teen Mobile:                                 Bruh-rizon:

x = Monthly                                    y = 30x + 7y

y = each gigabyte

y = 15x + 10y

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this