Marlene wakes up early in the morning and her room is fairly dark. She looks over and sees her shirt hanging on a hook. She knows it's her red shirt because she hung it up there before she went to bed, but in the dark she cannot see its color. It looks dark gray to her. Why is that?

 Cones in eyes are ineffectual in dim light

Explanation:

Cones are photoreceptor cells of eye that provide different response towards varying wavelength of light .They can effectively function in bright light and provide color vision of things.They tend to become ineffective in dim light or darkness as photoreception becomes improper.

According to the question, Marlene's shirt is looking dark grey in color in darkness rather than red(actual color in brightness) because cones of eyes have become ineffective in darkness

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

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the question deals with financial planning and the answer is that dan did not stay on budget due to the fact that this guy needs to start decreasing his discretionary spending. according to the financial plan, he needed to balance his expenses and resources.