How much is the mass of one rock?
Do that first.
I hoped I helped:)
Answer: terminating decimal
Step-by-step explanation:
Answer:

substitute x in y = 9/x
=> y = 9 or 1
So the number are 1 and 9 or 9 and 1
Answer:
11.5+5.5+13
Step-by-step explanation:
Answer:
3/5
Step-by-step explanation:
Cos C = adjacent/hypotenuse
or, Cos C = 21/35 = 3/4
Answered by GAUTHMATH