X2 + 74 x+ 400 answer please ASAP

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

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¯¯¯¯¯¯¯¯)?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?