On January 1srt 2014 there were approximately 10,200 tons of garbage in the Chicago River. The river will be officially marked as environmentally safe when there are less then 5,200 tons of garbage. Each year since then clean up efforts have been able to remove 350 tons of garbage. If t represents the number of years since January 1st 2014 and which of the following inequalities can be used to determine when the Chicago River is environmentally safe? A. 10,200 — 350t < 5,200
B. 10,200 — 350t > 5,200
C. 350t < 5,200
D. 10,200 — 350 < t

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

hi! i think the answer is 1/2 : )

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.

a

step-by-step explanation: