Answer:
c
Step-by-step explanation:
20% = 0.20
800 * 1.20 = 960
total cost = £960
Answer:
C
Step-by-step explanation:
(4,200 - 725) + 215 + 375 = 4065
I WAS THE FIRST TO PUT THIS, so if someone says the same, they copied me
Answer:
x²/9 − (y + 1)²/81 = 1
Step-by-step explanation:
-2y − 82 + 9x² = y²
9x² = y² + 2y + 82
9x² = y² + 2y + 1 + 81
9x² = (y + 1)² + 81
9x² − (y + 1)² = 81
x²/9 − (y + 1)²/81 = 1
