Im having trouble with these three questions

1. ) round $9.854 to the nearest dollar.

2.) round $56.9856 to the nearest cent.

3.) sierra is paid weekly salary of $550. how much does she earn in one year? (52 weeks in year)

i would need to see the dot plot : )

i dont get the question

step-by-step explanation:

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %