Solution: We have to find the Frequency and Relative frequency of the given data:
Frequency is the number of times a number occurs.
Relative Frequency is the number of times a number occurs divided by the total number of items.
Therefore, the frequency and relative frequency are calculated as below:
Number Frequency Relative Frequency
20 1 
21 4 
22 2 
23 4
24 3 
25 2 
26 3 
27 5 
28 3 
29 4 
Total 31
Answer:
-0.5
Step-by-step explanation:
-4.7+4.2 = -0.5
Answer:
C. infinitely many solutions
Step-by-step explanation:
every point of the line (or lines) is a solution.
so, infinitely many.
Answer:
○ D. 29
Step-by-step explanation:
According to the Order of Operations [GEMS\BOMDAS\PEMDAS etc.], evaluate all expressions inside grouping symbols, take care of the exponents, indices, roots, etcetera, evaluate Division & Multiplication from left to right, then evaluate Subtraction & Addition from right to left [or left to right, as long as you know what you are doing correctly]:

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