240,000 miles is the same thing as 2.4 x 10^5 miles.
Answer:

Step-by-step explanation:
Let x = the width of the garden
Then x + 3 = the length of the garden
Area of garden = length × width
A = lw = x(x+ 3)

width = x = 20 ft
length = x + 3 = 20 +3 = 23 ft

Check:

OK.
Answer:
then 0 and f have to be positive.
Step-by-step explanation:
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