Answer:
The scale factor for the resultant rectangle is
units.
Step-by-step explanation:
Given two rectangles with sides 3 units and 7.5 units.
We have to find the scaling factors so that we can obtain bigger rectangle of 7.5 units from smaller rectangle of 3 units.
Scale factor is defined as the ratio of corresponding side of given figure to the corresponding side of resulting figure.
That is 
Here, 

Hence, the scale factor for the resultant rectangle is
units.
Answer:
Step-by-step explanation:
o,o is in the origin
(37.5)(12.5)=x(15)
468.75=15x
x=31.25
she will have to work 31.25 hours in order to earn the same amount of money
Answer:
f(x)
Step-by-step explanation:
the function f(x) crosses the y-axis higher than either of the other functions, therefore it has the largest y-intercept