F x a
If f =72 when a =9 find,
A when f = 56

a = 7, when F = 56

Explanation:

From the given question,

F = xa ............. 1

⇒ x = ................. 2

when F= 72 and a = 9,

substitute the values of F and a in equation 2, to have;

x =

  = 8

x = 8

Thus, the value of a when F = 56 can be determined as follows;

From equation 1,

a = ................... 3

 =

 = 7

a = 7

The value of a is 7.

the answer is c. he is an efficient leader who prompts his crew to work quickly .

explanation:

one of the central themes of edward abbey's work has been his staunch opposition to the glen canyon dam on the colorado river that created lake powell, destroying stunning scenery and wildlife habitat, endangering many rare species of fish and animals, and also irreparably destroying many important archaeological sites which provided information about the early inhabitants of the united states.