you could write about quartz it's a pretty interesting mineral
here are some facts
it's very well known - occurs in all forms and colors - has the most variety names of any other mineral - amethyst, citrine, and agate are commonly recognized as individual minerals but they're just varieties of quartz - quartz can be heated to intensify color - often forms inner lining of geodes - rock type can be igneous, sedimentary, or metamorphic - occurs in almost every mineral environment
Answer:
Step-by-step explanation:
-3 is less than 0, so you are going to use 
.
Plug in values:
Answer:
y = -3
Step-by-step explanation:
y= 1/4x and x = -12
Substitute x=12 into the first equation
y = 1/4(-12)
y = -3
8ft*15ft = 120 ft^2
22% -> .22
120*.22 = 26.4
The window area is 26.4 square feet (ft^2)
I think it is 604.4285714285714
