Kathryn is getting ready for Halloween and is headed to the store to pick up a costume. At the Halloween store, she sees that there are 20 green wigs, 15 blue wigs, and 30 black wigs. Write the ratio of blue wigs to total
wigs in the Halloween store.

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.

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17