1 1/3 hours. 3/4 plus 7/12 equals 1 1/3. Hope this helps
Answer:

Step-by-step explanation:
Notice when x increases 1, y is 4 times the previous one, so
the function is like 
To determine the constant C, put any pair of (x, y)
Use x = 0, y = 0.2, so
0.2 =
= C * 1 = C
then 
Answer:
y= 250( 1-0.21)^x
Step-by-step explanation:
This represents exponential decay
125/12 would be your equivalent improper fraction
Answer:
is there like a image of this eqation?
Step-by-step explanation: