Answer:
absolutely no idea if this is right but i put the first one
Step-by-step explanation:
Answer: A. 0.874387438743.. is a rational number.
Step-by-step explanation:
Since Any number that can be written in fraction form is a rational number if it can be in the form of p/q where p and q are integers and q≠0
Since we can write 0.874387438743... = 
Where, 8743 and 9999 are integers and 9999≠0
Thus, 0.874387438743... is a rational number.
But, 0.0000100020003... , 5.891420975..... and 10.07401259... can not be written in the form of p/q therefore they are not the rational number.
Therefore, Only Option A is correct.
Answer:
Acute angle
Step-by-step explanation:
For this case we must do a conversion:
We have to by definition:
1 ounce equals 0.0625 pounds
Making a rule of three we have:
1 oz ------------> 0.0625 lb
67 oz ----------> x
Where "x" represents the number of equivalent pounds:

Thus, 67 ounces equals 4.1875 pounds
Answer:
67 ounces equals 4.1875 pounds
1kg=1,000g
300/1,000=3/10
3/10=0.3
2+0.3=2.3
2 3/10kg in fractions.
2.3kg in decimals.