Write the missing base case for function largest. Function largest should find the largest number in array numbers. When largest is first called, index will equal numbers. length-1.

public int largest(int[] numbers, int index) {

 if (index == 0)

   return numbers[0];

 return Math.max(numbers[index], largest(numbers, index-1));

}

Step-by-step explanation:

An image of the question is attached.  The missing base case is to check for when the index is equals to zero.

if (index == 0)

When index is zero, it return the only element that is present in the array which is numbers[0].

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

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step-by-step explanation:

this is a parabola.