Plz help me it’s emergency

For (b)is my graph correct?

Plz help me

You should connect the 1st dot at 10.00 straight up to 9km at 11.30

Step-by-step explanation:

Given that he walked for 90 minutes which is 1 hour and 30 minutes so you have to mark at 11.30. Next you have to find the distance he travelled :

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 ≈ 172.05

step-by-step explanation:

the pictures.