Use factoring by difference of squares to solve the equation, x^2 - 81 = 0.

a. x = 9 or x = -11
b. +/- 9
c. +/-
d. +/-

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths