Answer:
x²-2x-99
Step-by-step explanation:
(x-11)(x+9) - foil method
x times x = x squared
x times 9 = 9x
-11 times x = -11x
-11 times 9 = -99
x squared + 9x + 11x + -99
x squared-2x-99
16 because if you put 16 into a percentage it's 80. 16 divide 20 times 100 equal 80
Answer:
m<9=130 it also equal to 180 so 130-180 makes m<4= 50
Answer:
B: supplementary because they add up to 180 degrees