A vendor is thinking about changing the number of sweatshirts he brings to an event. To make sure he doesn't run out, he plans to bring more of the size
most likely to be sold.
The table shows the number of sweatshirts of each size sold at the vendor's
last event and the number he had for sale.
Sold
Number for sale
Small
218
227
Medium
412
594
Large
430
494
X-Large
131
167
Which size should he bring more of?
O A. Small
B. X-Large
C. Large
O D. Medium

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.