Bob places a 18 foot ladder 6 feet from the base of his house. Find the nearest degree the measure of the angle the bottom of the ladder makes with the ground

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted

if x = 1, then the answer is 3.5