Imagine you have taken 4 unit test. thus far, you have scored a 82%,90%,88%, and x%.you know have a test average of a 78%.what did you scored on that fourth test?

You scored a 52% on the fourth test.

Step-by-step explanation:

.78=(.82+.90+.88+x)/4

.78=(2.6+x)/4

3.12=2.6+x

.52=x

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)