Use a trapezoidal sum with the four sub-intervals indicated by the data in the table to estimate the definite integral from 0 to 8 of r of t, dt. using correct units, explain the meaning of your answer in terms of water flow. give 3 decimal places in your answer. t(hours) 0 | 2 | 3 | 7 | 8 r(t) (gallons per hour) 1.95 | 2.5 | 2.8 | 4 | 4.26

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

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step-by-step explanation: