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This problem is odd in that no information is given regarding the relationship, if any, between x and y, and (more importantly) x can't have both values -15 and 21. Please go back and ensure that you have copied down this problem precisely as it was given you.
62 can be written as 6 ten 2 ones.
Hope this helps!!
To solve this problem what you should do is write an equation of the potential type.
We have then that the generic equation is:
y = A * (b) ^ t
Where,
y: number of bacteria after t hours.
A: initial population of bacteria.
b: growth rate of bacteria (b> 1)
t: time (in hours for this case).
Note: compare the given expression with the generic equation shown to find the answer.
First, add the frequencies in order to obtain the total number of surveyed people,
Then, the condition 'a teenager has 4 or more pairs of shoes' is satisfied if the number of shoes is either 4 or 5; then,
<h2>The exact answer is 3/10 or 0.3 (both are equivalent)</h2>