What is the answer to cuando as el cumpleanos de sergio

Mary just sent out invitations to her wedding last week the invitations were so heavy that she put more than just one stamp on each envelope she used 255 stamps and mailed out 85 invitations and see you as an equal amount of stamps on each envelope

Aspanish conversation is below which answer matches the question? ¿de qué color es la sal? a. es blanca. b. es verde. c. es amarilla. d. es roja. who ever answers with the right answer first i will give brainlest answer.

19. fill in the blank with the correct conjugation of the verb in parentheses. (estudiar) en la biblioteca