Marcus and 3 friends collected $1,548 for charity and will give the same amount to 18 different groups.    how much money will each group get?   a. $516   b. $387   c. $172   d. $86

For this case we have the following variables:

x: total amount collected

y: number of groups

The relationship between the variables is given by:

Substituting values we have:

Making the corresponding calculation:

each group will get about:

D. $86

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.

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.