Rajiv wants to buy 90 light bulbs He can buy them from Germany or the United States.
In Germany, a pack of 6 lightbulbs costs 18 dollars.
The exchange rate is 1 euro=1.1 dollars
Work out how much Rajiv can save by buying 90 lightbulbs from the United States.
Give your answer in dollars​

i don't even know man. edge inuity be messing with us. i had to ask a question too.

i can you with this sweetie!

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.