7(thousands)
8(hundreds)
5(tens)
4(ones)
.(decimal point)
2(tenths)
0(hundredths)
9(thousandths)
Hope this helps! I would appreciate it if I got brainliest! Thanks! =D
Shawna got 16 items correct
Step-by-step explanation:
To find the percentage of answers or part of total answers we multiply the fraction with the total number of items.
Given
Total items on test = 20
Correct items fraction = 4/5
Then,

Shawna got 16 items correct
Keywords: Percentage, fractions
Learn more about fractions at:
#LearnwithBrainly
6.40x+9.90(154-x)=1230.90
Solve for x
X=84 for child
154-84=70 for adults
I think this attachment will help you