Answer:
He needs to wait for a 30% discount (or more)
Step-by-step explanation:
175x110%=192.5
So that's how much it originally costs.
192.5x70%=134.75
134.75x110%= 148.225 (since you also need to add in shipping)
There's a 0% chance, because there are no yellow marbles
Answer:
The answer should be (-3,0)