Which best describes how to add 9.73 and 21.6?
a. align the digits on the left digit.
add from left to right, regrouping as necessary.
b. align the digits on the right digit.
add from right to left, regrouping as necessary.
c. align the digits on the decimal point.
add from left to right, regrouping as necessary.
d. align the digits on the decimal point.
add from right to left, regrouping as necessary.

c

Step-by-step explanation:

from left 2 right it would be better..

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.