Answer: A:3 rolls B: $38.67
Step-by-step explanation:
1. Convert all units to the same value (feet to inches, as the opposite gives fractions)
2. Use new equation and multiply the said new variable (84*3 & 96*3)
3. The new total should amount to the total area (540)
4. Divide found area by 12 to convert back into feet (45)
5. Divide the feet by feet per roll (3)
6. Multiply for Cost
The answer is A
since 2x+3(2x)=16
Hence 8x=16
105 hope that helps and always have a great day!
Answer:

Step-by-step explanation:
Notice that the wave completes 3 oscillations at
. This means that the period is:

Since the frequency is the reciprocal of the period, we get:

So the frequency is:
