Por fa alguien que lo resulva es urgente

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Maria has $10,000 to invest in two accounts.he decides to invest one part in an account with 5% interest and the rest in an account with 8% interest. at the end of the year he has earned $702,50 in interest.¿how much did maria invest in the 8% account?

Write an expression that is equivalent to ( 3+14)+27.