Help can't work it out through the steps
1-34÷(3×8-7)-2×3

Start with what’s in the parenthesis. Then do PEMDAS (multiplication is next) and then do the division. And subtraction

12.4%

Step-by-step explanation:

The results from the random sample counts 124 from a total of 1000 people that wear contact lenses. This means is the percentageof the people in the sample that wear contact lenses.Because it is a random sample, it is suppose to reflect the behavior of the total population. Then we can expect or predict  similar percentage of Americans wearing contact lenses (12.4%).