1. Each shipment contains 25 cartons of eggs. I use 5 cartons from 1 of the shipments. Which function shows the relationship between y, the total number of cartons remaining in the remaining shipments, x? A. y = 25x + 7
B. y = 25x
C. y = 25x - 3
D. y = 25x - 5

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?