A basic unit of a chemical element
Answer:
First then second answer below
Step-by-step explanation:
-x+y 4
-1/-1=1 x=1 y=1
y/1=1/1+4/1
y=1x+4
-x+7y 21
-1/-1=1
7y/7=1/7+21/7
y=1/7x+3
Answer: 875.25
How I got my answer: 800-206.75+82+200= 875.25
Answer:
i think its d :both a and b
Step-by-step explanation:
i think