Answer:
Please see attached picture for full solution.
Sorry, I'm not sure how to do Q7 :(
In 10 months Lisa will have paid the same amount as Kelly, but in month 11 she will have paid more.
Answer:
The statement is false
Step-by-step explanation:
we know that

The tangent function will be positive when the sine function and the cosine function have the same sign
so
In the first quadrant the tangent function is positive
In the third quadrant the tangent function is positive
so
The statement is false
Assuming you means 6.5% tax of a $42 purchase
0.065*42=2.73
tax is $2.73