A bucket that holds 2 1/4 gallons of water is being used to fill a tub that can hold 10 1/2 gallons. How many buckets will be needed to fill the tub? (TESt QUESTION)

The answer is 6 1/2 buckets.

What is did was turn the fractions into decimals to make it easier.  

So the ratio is 5.25 gallons per bucket. I divided 34 1/8 by 5 1/4 in decimal form (34.125/5.25) and got 6.5

So therefore, the answer is 6 1/2 buckets of water is needed ti fill up the tub.

I am pretty sure the answer would be 4 and 2/3

Step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.