Answer:
I've already answered :) Please give Brainliest ;)
Step-by-step explanation:
Just change the y to all of the answers. The correct answer to this particular one is D. 4
Answer:
C
Step-by-step explanation:
Multiply the top and bottom, both by sqrtx-sqrt5. This is in order to rationalize the denominators.
You get answer C.
Answer:
She needs to sell for 64 more hours
Step-by-step explanation:
For 6 plug in each of the answers for x and see if the product =3.2
Answer for 6: A
For 7 you turn the percentage into a decimal and multiply that by the number in which you know and you find the answer.
Answer for 7: D