The sum of twice Ryan's age, r, and three times Lucas's age, I. What expression represents the sum of their ages?

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

4.6875 pounds

step-by-step explanation:

46.2+112.3

step-by-step explanation:

correct answer:

b.(19,-2)