Answer:
$26
Step-by-step explanation:
To find your answer, simply plug in Francesca's time and Phil's time to your cost equation.
Francesca can be represented by the following equation:

Phil can be represented by the following equation:

As such, Francesca pays $13 and Phil pays $39. Next, since you want to find how much more Phil paid, all you have to do is subtract 13 from 39. That will give you $26.
Answer:
q= 8
Step-by-step explanation:
1.5q-6-2=4
1.5q-8=4
1.5q=4+8
1.5q+4+8= 12
divide both sides
1.5q=12=8
The main identity you need is the double angle one for cosine:

We get

Expand the numerator to apply the identity again:




Finally, make use of the product identity for cosine:

so that ultimately,


Answer:
$94.50
Step-by-step explanation: