Answer:
First, you would need to find a common denominator for the two, in this case it would be 6 which would make the equation 3/6 + 4/6=7/6. Then in order to make the answer a mixed number you would need to divide the numerator into the demonanator, write down the whole number answer (6 will go into 7 ONE time) then write down the "leftovers". The final answer would be 1 1/6
(i hope this helps! im not the best at explaining)
About 750 different permutations
just count how many there and and eliminate one by one
Answer:
7x-2 = 12x-22
-7x
-2=5x-22
+22
20=5x
÷5
x=4
KL is 7x-2, so substitute the value of x.
7 x 4 - 2 = 26
KL = 26
Hope this helps!