Answer: D
Step-by-step explanation:
c+2 increases linearly with c. That means that if c increases by 1, c+2 will increase by 1; if by 2, c+2 will increase by 2; and so on.
y = c+2 is a "linear function of c."
In order to add or subtract fractions, they must have the
same denominator. You need to change both of these
fractions to have the same denominator ... without changing
their values, of course.
The smallest common denominator for these fractions is 20 .
3/4 is the same amount as 15/20 .
3/5 is the same amount as 12/20 .
Now that they have the same denominator, you can do
the subtraction.
Factor Tree
54
6 × 9
2 × 3 3 × 3
54 = 2 × 3 × 3 × 3 = 2 × 3³
2|54
3|27 → 54 = 2 × 3 × 3 × 3 = 2 × 3³
3|9
3
I'm not sure about ladder method... is it the same as upside down division.
Begin with a prime number that will divide into the number.
