Need help to math answer in the photo

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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)