Suma varstelor a 3 frati si a tatalui lor este 54.Aflati varstele stiind ca sunt reprezentate prin numere impare consecutive si ca la nasterea celui mai mic, tatal avea de 7 ori varsta celui mai mare

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¯¯¯¯¯¯¯¯)?

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Is the point (0, 8) on the x-axis or y-axis? how do you know?