7.5, 7.058, 8.508,
8.58
Step-by-step explanation:
The expressions that could represent how much Leila pays in total for the model
\dfrac{107}{100}x
100 107 Option A is correct.
This is further explained below.
<h3>Which of the following expressions could represent how much Leila pays in total for the model?</h3>
The price of the model is x
Now we are given that she also has to pay a 7 tax.
Amount of tax =7 % x

the Total cost

In conclusion, the statement might signify Leila's overall cost for the model. 
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Answer:
Option B is correct
Function 1, because the slope is 4 and the slope of function 2 is 2.
Step-by-step explanation:
Slope-intercept form:
The equation of line is given by:

where, m is the slope and b is the y-intercept
As per the statement:
Function 1: y = 4x + 5
On comparing with [1] we have;
Slope of function 1 = 4
Function 2: The line passing through the points (1, 6) and (3, 10).
Using slope formula:

Substitute the given points we have;

⇒
Simplify:
⇒
⇒
⇒ Slope of the function 2 is, 2
Since, function 1 is greater rate of change.( i.e 4 > 2)
Therefore,
Function 1 has the greater rate of change, because the slope is 4 and the slope of function 2 is 2.
For 1 hour:
- Jennifer can clean 1/2 of her room;
- John cal clean 1/5 of her room.
Both can clean: 1/2 + 1/5 = 5/10 + 2/10 = 7/10
1 hour -------- 7/10
x hours---------- 1
x = 1 : 7/10 = 10/7 h = 1.42857 h ( or 1 h 25 min 43 s )