Answer:
7 and one-half feet squared
Step-by-step explanation:
3 x 2.5 = 7.5
x ∉ R
x² = - 21
if x² < 0 => x ∉ R
n=9
Y=-3x+15
Comparing to y = mx + c
Slope m = -3
Intercept c = 15
Rational number since a rational number is Any integer
