Answer:
B
Step-by-step explanation:
We have

Here the value of a is always positive because distance is positive

Next, we factor out 7 to get our period

So our period is

Next, our phase shift we set the inner parenthesis equal to 0.


So our phase shift is -3/7
Answer:
Step-by-step explanation:
i have no idea what to do
Discount is 25% , so you pay 75% of original price.
Sale price = 35*.75 = 26.25
Add Tax --> 26.25 + 26.25*.07 = 26.25 + 1.84 = 28.09
Total purchase price = 28.09
The answer is 5% . 4000+5% would be 4200