Answer:
56
Step-by-step explanation:
80% is .8. Of means to multiply. So do .8 x 70 which comes out to 56.
I hope this helps! If you have anymore questions feel free to ask! :D
Answer:

Step-by-step explanation:
Recall that since sine is an odd function:

Hence:

Therefore:

Step-by-step explanation:
p² + q² + 5(p² + q²)
= 1(p² + q²) + 5(p² + q²)
= (1 + 5)(p² + q²)
= 6(p² + q²).
Answer: B
Step-by-step explanation: 3^4 is 81, and 3^2 is 9. 81/9 is 9. :)