Two angles in a triangle add up to 138 degrees what is the size of the 3rd angle

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x,and the distance in miles, y, that he travels.

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?