Answer:
0
Step-by-step explanation:
The priced was decreased by $300. So it starts at -$300. Then additional features is $900. So it's now $600. But the dealer took -$600 off. So now it is $0 from the original price.
Positive because a negative and a negative will always make a positive
Let n = the unknown number.
Six times a number = 6 * n = 6n
20 more than number = n + 20
Greater than = >
Put it all together:
6n > n + 20
Subtract n from both sides to get constants on one side and variables on the other:
6n - n > 20
5n > 20
Divide both sides by 5 to isolate variable N
n > 4
or (4, ∞)
1 mile=5280 feet
7 miles=7 times 5280=36960
1 yard=3 feet
1/3 yard=1 foot therefor
36960 times 1/3=36960/3 yards=12320 yards
answer is D, 12,320