Answer:
Lowest score needed=4.92
Step-by-step explanation:
Using the standard normal distribution table we find the value of standard normal deviate corresponding to area of 15%
For area of 15% we have Z= -1.04
Thus we have

Applying values we get

Thus lowest score needed = 4.92
Answer:
8.81 KG (8810 g)
Step-by-step explanation:
8.1 KG (8100 g) + 710 g
Answer:
c
Step-by-step explanation:
2 will work.
if you use two the answer is.
(x-4)(x+4)