(x + 2y)^10
(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)(x + 2y)
(x² + 4xy + 4y)(x² + 4xy + 4y)(x² + 4xy + 4y)(x² + 4xy + 4y)(x² + 4xy + 4y) (x^4+8x³y+8x²y+16x²y²+20xy²+16y²)(x^4+8x³y+8x²y+16x²y²+20xy²+16y²)(x²+4xy+4y)
Before the work was done, the cost was ...
($4/gal)*(8 gal)/(340 mi) = $32.00/(340 mi)
After the work was done, the cost was ...
($4/gal)*(7 gal)/(350 mi) = $28.00/(350 mi)
The savings is the difference of these costs:
(32.00/340 -28.00/350) $/mi ≈ $0.01/mi
After the mechanic worked on the car, it cost about $0.01 per mile less to run.
Answer: 4. 3. 9. = 2. 1. 10. = 3. 1. 11. = 10. 8. 12. = 3. 2. Rename each percent as a decimal: 13. 8% = 14. 60% = 15. 11% = 16. 12% = 17. 40% = 18. 95% = 6.
Step-by-step explanation: Good luck!