first and second part put 0.75, then multiply 0.75 by 2 to get 1.50, then write in the third part 1 and 1/2
hope this helps
first off let's convert the mixed fractions to improper fractions.

she already did half a hat, so we can say 
so she only needs enough fabric to make 3 more full hats, we know each one uses 9/7 ft, so

This is a square root problem since the patio is square.
A of a square is L x W or L^2 or W^2 - it's all the same.
So find the square root of 220 feet.
14.8323 We are to round to nearest hundreth which is the second position right of decimal. Look at the number to the right of that position.
It is a 2. So we do not round the number up.
14.83 is the rounded sq. ft of each side.
Check it!
14.83^2 = 219.92 Because we rounded, this number is not exact, but close.
Answer: (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)
Step-by-step explanation:
We know that the confidence interval population proportion (p) is given by :-

, where
= sample proportion.
z* = Critical value (Two -tailed)
SE = standard error
Given : In 2012, about 24% of high-school seniors reported binge drinking (defined as five or more drinks in a row in the past two weeks), a substantial drop since the late 1990s.
SE = 0.019
Significance level =
Two-tailed value corresponds for
:
z*=1.96 [Using z-table]
Now, the 95% confidence interval for the proportion of high-school seniors in the sample who would report binge drinking will be :-

Hence, the correct answer = (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)
It’s definitely 100% B sorry if I’m late :)