The perimeter of a parallelogram with length of 1.4 inches and width of 3.9 inches is

10.6 inches squared

Step-by-step explanation:

P = 2(L + W)

P = 2( 1.4 + 3.9)

P = 2 x 5.3

P = 10.6 inches squared

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116