You have to FOIL out the (x+4)(x-4) and then subrtract away the 9 in order to get a quadratic that you can solve for x. As it is, you can't do it.
Now if you move the 9 over with it, you get this:
which simplifies to
Now you can either solve this by recognizing that is the difference of perfect squares, or you can move the 25 over to the other side and take the square root of both sides, like this:
75 percent of 225 is 168.75
The correct answer is option b) expertise Mrs. Deverell brought to her household tasks.
The use of "arts" in line 51 most directly emphasizes the expertise Mrs. Deverell brought to her household tasks.
"She felt as if she had squandered her time gaining talents that would eventually be useless to her.
Her weather-eye for a good drying day, her keen ear for evaluating the gentle singing sound of meat roasting in the oven, her touch for the freshness of meat, and her ability to detect if a cake had been cooked by smelling it were all examples of these talents.
These practices, which took a long time to develop, are no longer practiced." - From the context, it is evident that "arts" refers to Mrs. Deverell's ability with household chores.
Learn more about ("Angel") Deverell
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simple interest formulae = PRT/100
where
p stands for percentage (2%)
r stands for rate ( 900)
t stands for time (2 years )
2×900×2/100
=3600/100
=36
The ratio of 1 to 3 is 1 : 3 or 1/3 (1 over 3)
