The first one (2-x^3) is the correct one
Answer:
6.07/212
Step-by-step explanation:
X ÷ 9 = 6
Multiply both sides by 9
x ÷ 9 • 9 = 6 • 9
x = 54
Answer:

Step-by-step explanation:
We are told that the average human heart beats
times per day and there are
days in one year.
To find number of heart beats in one year we will multiply number of heart beats in one day by number of days in one year.

Now we will solve this problem using exponent properties.



Our answer is in scientific notation we can represent it in standard form as
times.
Therefore, average human heart beats in one year
or 41975000 times.
Suzy: (7 days)(5/4 miles per day) = 35/4 miles
Gretchen: (7 days)(3 miles per day) = 21 miles
Subtracting, 21 miles less 35/4 miles = 49 miles (difference)