 
 <translate> Give the step-by-step reasoning process and then the final answer. Dana has 15 more pencils than Jayden, who has twice as much as Marcus. How many more pencils does Dana have than Marcus, if Jayden has 20 pencils? <ibo> Kwuo otú e si atụgharị uche n'isiokwu ahụ, kọwaa nke ọ bụla n'ime ha, ma kwuo ihe bụ azịza ya. Dana nwere pensụl iri na ise karịa Jayden, onye nwere okpukpu abụọ karịa Marcus. Olee otú Dana si nwekwuo pensụl karịa Marcus, ma ọ bụrụ na Jayden nwere pensụl iri abụọ? 