Answer:
Step-by-step explanation:
First we need to calculate the perimeter of the garden, and compare it to the amount of fence material she has.
P = 2 * (6 3/4 + 4 2/3)
P = 2 * (27/4 + 14/3)
P = 2 * 137/12
P = 274/12
P = 137/6
P = 22.83333333
Since this value for the perimeter is greater than 22, that would mean that Tirzah has enough fence material to go all around her garden.