A faraway planet is populated by creatures called Mizjigs. All Mizjigs are either black-footed or red-footed and either one headed or two-headed.
Ragon, who lives on this planet, does a survey and finds that her colony of
237 contains 45 black-footed, one headed Mizjigs, 69 red-footed, two-headed
Mizjigs, and 115 one headed Mizjigs.
One-headed Two-headed Total
Black-footed 45
69
Red-footed
237
Total
115
How many black-footed Mizjigs are there in Ragon's colony?
O A 53
B. 98
C. 122
O
D. 70