1.)
1 gift takes (1/9)hour. This can be written as the rate\(\frac{1gift}{(1/9)hour}\).
We can make a proportion and relate the old number of gifts (1) to the new number of gifts (represented by unknown variable x) and the old time (1/9 hour) to the new time (3 hours).
Then cross multiply and solve for x.
\(\frac{1gift}{(1/9)hour} = \frac{x}{3hours} \\ \\
(1/9)x = 1*3 \\ \\
x = \frac{3}{ \frac{1}{9} } = 3*9 = 27\)
2.) I think this is just a restatement of the last step.
3 * 9 = 27
