What property is 4 + ( -4) = 4 and 2 (8+ T) = 2× 8 + 2 × T

What is the solution of log2  (3x  -  7)  =  3? 4 5

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

2.5 milligrams is equivalent to how many grams