Answer:
The correct option is (A).
Step-by-step explanation:
The expression Carey is solving is:

Simplify the expression as follows:


So, in Carey's calculation the third step is incorrect.
Instead of 27 the three-fourth must be multiplied by 36 to get the correct answer.
Thus, the correct option is (A).
The phrase that could be represented by the expansion would be a binomial.
680 grams.
So, it's telling us to calculate the weight, in grams, of the other rock.
So firstly,
6 of the rocks EACH have a weight of 720 grams.
So, 6 x 720 = 4320
Now save 4320 for later.
Next, we need to convert the 5 kilograms into grams.
So, 5 x 1000 = 5000
now do, 5000 - 4320 = 680.
Your final answer would then be = 680g
I hope this helped.
Answer:
ID-=35'-
Step-by-step explanation:
Money spent by Americans last year=$1,180-6.8% of $1,180
=$1099.76