Kenny has 2 red marbles, 3 blue marbles, and 4 black marbles. which ratio compares a part to the whole?
2 to 7. 5 to 4. 3: 9 9: 5

3:9

Step-by-step explanation:

since there are 9 marbles in total it must be x to 9

the only solution available, which shows this is 3:9

step-by-step explanation:

in the absence of parentheses, i will have to make some assumptions:   i interpret your (3x+5/y^6)(4y^3/5)​ to mean:

3x + 5     4y^(3/5)       (3x + 5)(4)

* =

    y^6             1               y^(6-3/5)

if this is not what you expected, repost your question using parentheses to indicate whether you meant

4y^3

    or   4y^(3/5)

    5

if x decreases by 4 then y increases by 10

step-by-step explanation: