Each of the four outside walls of the large wooden box shown above is to be covered with waterproof plastic that comes in 3-foot-wide rolls. the plastic does not overlap. what is the total length, in feet, of plastic, needed to cover the four walls?
a) 21 ft
b) 42 ft
c) 63 ft
d) 84 ft
e) 126 ft
explain too, .

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64