Answer:
21 x 33 = 693
16 x 7 divided by 2 = 216
17.6 x 17.6 divided by 2 = 154.9
19 x 7.8 = 148.2
7 + 2 x 5.5 divided by 2 = 24.8
10 x 12 = 120
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A rational number is any number that can be written as "a/b," where "a" is an integer, and "b" is not equal to zero.
Rational Number:
a
--- → "a" is an integer → "b" ≠ 0
b
Answer: A and D
Step-by-step explanation:28 x 43=860
20 x 3=60
860-60=800
20 x 40=800
all of this equals 860
C/a
This is a standard formula you need to know in order to solve.
