Find the perimeter, in inches, of the parallelogram. A parallelogram is 5 inches wide, 15 inches long, and 4 inches high.

What two consecutive odd integers have a sum of -28

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¯¯¯¯¯¯¯¯)?

Asphere has a diameter of 10 in. what is the volume of the sphere?