Answer:
3/10
Step-by-step explanation:
there are 10 letters in substitute
there are 3 t's
The bulb will last less than 800 hours is 0.550
-3
A = midpoint
-17 + 5 = -12
-12/2 = -6 = A
-6 + 0 = -6
-6/2 = -3 = B
Answer: 6. d
7. b
8. d
9. c
72.50