I see.
The correct way to write these is
A: 3^-2 * 3^ - 2 = 1/9 * 1/9 = 1/81 and this one is fine.
B: 3^-4 = (1/3)^ 4 = 1/3 * 1/3 * 1/3 * 1/3 = 1/81 and this one works.
C: (3^-2)^2 = (1/9)^2 = 1/81 and this one also works.
D: No matter how you interpret this, it is not going to equal 1/81. I think it might be written as -(3)^2 * - (3)^2 = - 9 * - 9 = 81 which is not correct.
Answer: D
8 gallons/340 miles vs. 7 gallons/350 miles
$32/340 miles vs. $28/350 miles
$1.133/1 miles vs. $0.08/1 mile
113 cents/mile vs. 8 cents per mile
113 cents- 8 cents = 105 cents
The answer is 105 cents/mile.
if the factory hose pumps out 7.35 liters of chocolate a minute and you have 6 minutes you could multiple and you would get 44.1(7.35x6=44.1)
Answer: C. 30
Step-by-step explanation: Based on the rate of change and the decreasing amount of hot chocolates he sells, he will sell approximately 30 hot chocolates if it is 36 degrees fahrenheit outside. Hope this helps!
Answer:D because you divide it bu a common factor
Step-by-step explanation: