Someone help ASAP, I need help understanding this I’ll mark as brainliest Solve for missing sides and angles.

Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .