Last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x
represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail.
if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail?
o x + y = 90
5x – 10y = 90
o 90 – 10y = 5x
o 90 + 10y = 5x

Can someone me out here and the tell me the greatest common factor

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)

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2