Students in a science class measured rain by writing down the depth of water in a bucket that collected the rain. The bucket was empty before the rain
began to fall at a steady rate over a 6-hour period during school. After
3 hours, the water had a depth of 18 millimeters.
At what average unit rate, in millimeters per hour, did the bucket fill after rain
started to fall at a steady rate?

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.