There is an unknown amount of people at the beginning of lunch. Then Each student had 2 friends come sit with them, tripling the amount. Then the entire group divided into 5 groups, and all but one group left and went outside, so only 1/5 of the total students were left in the lunchroom 3 more people came into the lunchroom The total number of people in the lunchroom at the end of lunch was 11 Which of the following equations would represent the story above to help us find how many people were in the lunchroom at the beginning?

the f

last graph i believe

step-by-step explanation:

worked it out i believe

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.

b

step-by-step explanation:

b). 4320 have a nice day