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each family was asked to bring 4 baseballs and 3 whiffle balls to game day. the equation below represents the total number of game balls brought by each family.
b=4+3
which equation would represent the total number of game balls brought by 7 families?
a. b = ( 7. 4) +3
b. b = 7 + 4 +3
c. b = 7 . (4 + 3)
d. b = 4 + 3 . 7