I didn't know how to phrase this but pls help ;--;/ Use the tables to answer the question. Mineral Mohs Hardness
calcite 3
feldspar 6
halite 2.5
talc 1
Item Mohs Hardness
fingernail 2.5
penny 3
glass slide 5.5
streak plate 6.5
Luiz has an unknown mineral. He suspects he has feldspar. If he is correct, which of the items listed will be able to scratch the mineral’s surface?

A.
a penny

B.
a glass slide

C.
a streak plate

D.
his fingernail

individual oxygen atoms are formed during photosynthesis.-c.

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

discord server for trading homework!

explanation: ill you out, join