Answer:
1 hour ago would be 3C.
3 hours ago would be 9C.
4.5 hours ago would be 13.5
Step-by-step explanation:
Answer: x=90
Step-by-step explanation: 11 x 7.5 =90
Answer:
37/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
a² - b² = (a +b)(a - b)
9x² - 4 = (3x)² - 2²
= (3x + 2 )(3x - 2)
Answer:x > -3
Step-by-step explanation: