Answer:
l = 2 1/2 ft
Step-by-step explanation:
Area is given by the formula
A = l*w
We know the area is 8 1/2
Changing this to an improper fraction 8 1/2 = (2*8 +1)/2 = 17/2
The width is 3 2/5 as an improper fraction = (5*3+2)/5 = 17/5
17/2 = l* 17/5
Multiply each side by 5/17
17/2 * 5/17 = l* 17/5 * 5/17
5/2 = l
2 1/2 = l
l = 2.5 feet
A = lb
8.5 = l * 3 2/5
8.5 = l * 3.4
l = 8.5 / 3.4
l = 2.5 <u>feet</u> <u>(</u>Always remember to put the units, otherwise you may not get points.)
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4,005,090,807
4 x 1,000,000,000 + 5 x 1,000,000 + 9 x 10,000 + 8 x 100 + 7 x 1
4 * 1,000,000,000 = 4,000,000,000
5 * 1,000,000 = 5,000,000
9 * 10,000 = 90,000
8 * 100 = 800
7 * 1 = 7
Add it all together and you get 4,005,090,807
I hope this helped. Sorry if you get this wrong.
$2.67
you divide to find unit rate
8/3 = 2.666667
