Answer:
I think 4:1 I'm not that sure tho
Answer:
180-78=102
Step-by-step explanation:
Answer:
35º
Step-by-step explanation:
90-55 = 35º
Answer:
a) 62
b) 31/45
Step-by-step explanation:
a) The table tells you there are 42 males, and 20 more females that study biology.
42 +20 = 62 . . . are male or study biology or both
__
b) Of the total of 90 people, 62 are male or study biology (or both). The probability that any person is in that category is ...
62/90 = 31/45 = P(male or biology)