Answer:
18
Step-by-step explanation:
xy + 4 = 40
xy = 40 - 4
xy = 36
What two numbers can b multiplied to give 36? Then add them.
9 + 4 = 13
18 + 2 = 20
6 + 6 = 12
12 + 3 = 15
The odd option is 18
71. answer is zero (0).
72. answer is negative six (6)
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Answer:
15 students
Step-by-step explanation:
The fraction of students who will repeat the exam is:

=
simplified is:

Extract this fraction of 45:

Hope this helps
Step-by-step explanation:
11m - 7m < 14 + 14
4m < 28
m < 28 / 4
m < 7