I NEED HELP ! "DONT U ALWAYS" YES BUT I DONT UNDERSTAND THIS UNFORTUNATELY! lolll The length of an object is directly proportional to the length of its shadow. A tree that is 2.5 meters tall cast a shadow 5 meters long. How Tall is a building that cast a shadow 78 meters long?

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¯¯¯¯¯¯¯¯)?

Ineed i been stuck on this question since yesterday

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.