Brian places baseball cards in an album with 9 on each page. he could represent the total number of baseball cards he has in an album using the expression 9t.

brian wants to put an additional 7 cards on each page.

which expression would represent the number of baseball cards in the album after brian adds 7 additional cards to each page?

a.
9 × 16

b.
9 × 7

c.
7t

d.
16t