Answer:
third option I believe.
Step-by-step explanation:
<span>Apprentice B earns $120 because Apprentice A's wage is $4/hour (160 divided by 40), and the question states that they are paid at the same scale. Therefore 4 x 30 = $120.</span>
Answer:
% Change = (87.5 - 125) / 125 * 100%
= -37.5 / 125 * 100%
= -0.3 * 100%
= -30 %
The percent change is -30 % or 30% decrease.
Answer:
40.2
Step-by-step explanation:
X⁴-14x²+45=0
(x²) ²-14x²+45=0
let y=x²
y²-14y+45=0
(y-9) (y-5) =0
y=9 or y=5
x²=9 or x²=5
x=±3 or x=±√5
