Answer:
they would have saved 35 dollars
Step-by-step explanation:
Ralph on his own would have paid 105 and jeff 140 but together with the discount they could save $35 by paying 210 in total with the discount.
$0. She got the $40 ring and then gave it back. 40-40=0.
It's the third graph, the one where the absolute function is opening downwards
