Answer:
formula for area is length × height
so we have 13+8 ×16+4
21×20 = 420m
Answer:
D
Step-by-step explanation:
I dont think this needs explained
Answer:
~306
Step-by-step explanation:
34 * 9 = 306
X + y = 2 —> y = 2 - x
insert to first equation
2-x=x^2-3x-6
x^2 - 3x - 6 - 2 + x = 0
x^2 - 2x - 8 = 0
(x-4)(x+2) = 0
x = 4 or x = -2
