Joe has 4 yards. There 3 feet in one yard, and 12 inches in one foot. How many 6 inch pieces of wood can Joe get from his 4 yards

24

Step-by-step explanation:

Ok, so Joe has 4 yards. And 3 feet is 1 yard and 1 foot is 12 inches. You want to find how many 6 inch pieces of wood Joe can get.

3 feet times 4 because there are 3 feet in yard.

Now you know there are 12 feet of wood.

So you now need to find how many inches.

To do that you times the 12 feet by the 12 inches to get 144 inches.

Then you divide the 144 by 6 because you want to know how many 6 inches there are.

There are 24, 6 inch pieces of wood.

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.