The first one. It is called an exponential decay curve.
Answer:
I think c but I'm not sure
You have no choices listed but here's the answer:
(85 + 91 + x) / 3 = 94
Multiplying both sides by 3
85 + 91 + x = 282
x = 106
In order for her to get a 94 average she would need a mark of 106 on her next test.
Answer:
They each got $3.00
Step-by-step explanation:
7+x = 2(2+x)
7+x = 4 + 2x
-x = -3
x=3
