Answer:
The answer would have came out of 3.84615384615
Then round up the answer to 3.85. So the unit price is $3.85
Y=3
Simplify
Distribute
Combine like terms
Add 2y to both sides
Add 2 to both sides
Divide by 3 , both sides.
If u want me to write the numbers and all just reply
Step-by-step explanation:

Step-by-step explanation:
We'll use BODMAS to solve this
Open the brackets :
- 2(5x+5)+9(x-10)+9sq = 10x+10+9x-90+81
- Then we arrange them accordingly :10x+9x+10-90+81
- We then calculate :19x+10-90+81
- BODMAS :19x+91-90 = 19x+1
- ANSWER :19x+1
Plug it into a graphing calculator and see where the function crosses the x-axis. Since it’s a quadratic it will cross it two times but one of the answers is negative—obviously it wouldn’t take negative second to hit the ground. It should take 9 seconds for the object to hit the ground.