The hadley pto treat stand in the lunchroom kept track of its milkshake sales each week in the first week of may the pto sold 58 quarts of the milkshake in the second week it sold 55 quarts of the same milkshake sales were 20gallons the 3rd week and 300 pence the 4th week what is the average weekly amount of milkshakes sold to the nearest quart for the month of may

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.