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Last year, Aldo biked d miles. This year, he biked 309 miles. Using d, write an expression for the total number of miles he biked?

Last year Aldo biked d miles This year he biked 309 miles Using d write an expression for the total number of miles he biked class=

Respuesta :

Answer:

D+ 411

Step-by-step explanation:

as you see answer is right above