Answer:
It is known that 1 pint equals 16 ounces
Step-by-step explanation:
It is known that 1 pint equals 16 ounces. Then we use this data to transform a number of ounces into pints.
Suppose we have x ounces. We want to know how many pints are these x ounces. Then we perform the following operation

Where z pints is the amount equivalent to x ounces
The answer is seven (7)
Explanation:
There are eight red flowers
There are ten white flowers
There are five yellow flowers
Add those together.
8+10+5 = 23
Subtract from the total number of flowers which is thirty.
30 - 23 = 7
Seeing from the graph I've provided above, the correct answer would be D, the last one.