50 points! Need answer ASAP! Thanks in advance!
Choose the correct simplification of (5x3 − 5x − 8) + (2x3 + 4x + 2).

7x3 + x + 6
3x3 − 9x − 10
3x3 + 9x + 10
7x3 − x − 6

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)