Anthony tedesco sold his bike and accessories for $315. if he received 8 times as money for the bike as he did for the accessories , find how much money he received for the bike.. ?

  $280 for the bike

Step-by-step explanation:

If the relative values were ...

  bike : accessories = 8 : 1

Then the ratio of the bike to the whole amount is ...

  bike : total sale = 8 : (8+1) = 8 : 9

That is, the money Tedesco received for the bike is 8/9 of the total he received:

  bike money = (8/9)×$315 = $280

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.

$6.42

step-by-step explanation: