Which situation can be represented by a single expression? a. the product of 3/4 and a number is 16 b. 1/5 of a number c. half of a number is 15 d. the difference of 20 and a number is 14?

Option 'B' is correct.

Step-by-step explanation:

Since we have given that

A. The product of 3/4 and a number is 16.

The expression would be

B. 1/5 of a number

The expression would be

C. half of a number is 15

The expression would be

D. The difference of 20 and a number is 14

The expression would be

So, we can see that is represented by a single expression.

Hence, option 'B' is correct.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )