Answer:
D
Step-by-step explanation:
3:5 is equivalent(equal) to 15:25.
15÷5 and 25÷5 is equal to 3:5.
Hope this helped!
Well if you're referring to rationalizing

, which simply means, getting rid of the pesky radical at the bottom
well, it boils down to, hmm say... a quantity or even a polynomial, multiplied times 1, is itself, 2*1=2, 3*1 = 3, ducks*1 = ducks, spaghetti * 1 = spaghetti
or whatever * 1 = whatever
and the value of the multiplicand, doesn't change in anyway, is the same thing before and after the multiplication by 1
now....1 can also be a fraction

so.. when you're doing

and the value multiplicand doesn't change in any way
now, try this in your calculator
Answer:
(c)- 4/13
Step-by-step explanation:
There are 4 types of cards in a ordinary deck clovers, diamands, hearts, and spades
each set has 1 seven each, so 4 sevens total.
Also, each type of card has 13 different cards in it
so, your answer is 4/13
Y would be 16,
y=kx
6=3k
2=k
y=2(8)
y=16