Michelle wants to start a babysitting club and decides to call a meeting. As a thank you to everyone for coming she decides to order pizza. She orders two large pepperoni and two extra-large cheese pizzas and the total comes to $30.00. When the delivery person arrives she hands him a $50.00 bill. How much change should she get back? If she tipped the delivery person 10% how much would she get back?

I am not sure if my math is correct but I got $15 dollars in change.

Step-by-step explanation:

$50 times 0.10 (10%) equals $5. $50.00 minus $30.00 is $20.00. $20 minus $5 is $15.

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.