87.474 hope it’s right :)
Answer:
65
Step-by-step explanation:
I did 17 X 25 to find out how much she earned JUST from the warranty, which is 425. Subtract that from $1530 and get $1105. Divide that by 17 and get 65.
Answer:
21
Step-by-step explanation:
Since Lilly has read 7/8 of her book (aka 147 pages), divide 147 by 7 and you get 21.
This means 1/8=21
Since she has read 7/8 of the book, and the full book is 8/8, 8/8-7/8= 1/8
Meaning she has 1/8 of the book left to read.
As said before, 1/8 =21
Thus, she has 21 pages left to read.
Answer:
The treatment decays by half each week.
Step-by-step explanation:
The decay function is given by:

Here,
<em>y</em> = final value
<em>a</em> = initial value
<em>r</em> = decay rate
<em>t </em>= time
The decay function for one medications to treat dogs for fleas is:

Here the decay rate is:

The treatment decays by half each week.