Please Write three expressions that are equivalent to 24k + 12k.

If you can’t write three please do one or two, to the best of your ability.

A bag of plums costs $3 per pound and a bag of orange costs $2 per pound. If Cammie buys x pounds of plums and y pounds of oranges, what expression could she write to find the total amount she will spend?

Please please please please answer.

Thank you in advance.