Reiko Needs to mail her Christmas cards and packages and wants to keep her mailing costs to no more then $500. The number of cards is at least 4 more than twice the number of packages. The cost of mailing a card (with pictures and closed) is $3 in for a package the cost is $7. Write a system of equations to model the situation​

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

where is the figure

ok then what happened.