Answer:
Luster describes the reflection of light off a mineral's surface. Mineralogists have special terms to describe luster. Minerals that are opaque and shiny, such as pyrite, have a metallic luster.
Step-by-step explanation:
Answer: 450 is your answer
4y = 18+14
4y = 32
y = 32/4
y = 8
mark brainliest!
a equal to c 25 b greater than