Answer:
C
Step-by-step explanation:
F must be on -4
H must be on 4 (because it is -f=-(-4)=-1•-4=4)
Answer:
12 (or A)
Step-by-step explanation:
A coefficient is the number before a variable.
Examples: 5r , 34y, 10x^2 (the coefficients are 5, 34, and 10)
12 has a variable after it, so 12 is a coefficient.
All I can find on this is that it would be 10/16 but thats not an awnser. hmmm
The rationals being closed under subtraction means that if we start with two rational numbers and subtract them, we get another rational number. Choice c subtracts two rational numbers but gets the wrong answer, so isn't support for anything. Choice b is rational too because the square root of 4 is 2.
Answer: b