Twenty-one thousand four hundred
Answer:9
Step-by-step explanation:
Use the pythagorean theorem. 
We know both a and c, so it becomes
=
16+b^2=97=
97-16=b^2=
81=b^2=
9=b
Answer:
∠A = 88°
∠B = 92°
∠C = 88°
∠D = 92°
Step-by-step explanation:
∠A + ∠B = 180°
(2x + 4) + (3x - 34) = 180
reduce:
5x - 30 = 180
5x = 210
x = 42
∠A = 2(42) + 4 = 88°
∠B = 3(42) -34 = 92°
∠C = ∠A = 88°
∠D = ∠B = 92°
Answer:
$0.31
Step-by-step explanation:
Unit price is measured by dividing the price by the amount of an item, so 3.72/12 = 0.31