The laptop would be of no worth. To find its actual value, it would equate to $-375.
The measurement of arc DB equals 74.57°. Step-by-step explanation: To clarify the resolution method: A secant intersects a circle in precisely two points, while a tangent intersects at just one point. When a tangent and a secant intersect outside of a circle, the formed angle's measurement is precisely half of the positive difference between the measures of the intercepted arcs. Now, applying this to the issue where secant CE intersects circle A at points D and E, while tangent CB touches circle A at B, forming angle ECB. As such, m∠ECB = 1/2 (m arc EB - m arc DB). Given m arc EB as 96° and m arc DB given as 25x + 21, along with m∠ECB as 5x, we establish the equation 5x = 1/2[96 - (25x + 21)]. After rearranging and solving, we find x = 75/35, simplifying to 15/7. Next, substituting x back into the arc DB formula gives m arc DB = 25(15/7) + 21 = 522/7 yields approximately 74.57°.
The total revenue amounts to $32.13. A breakdown of this revenue shows that both types of tomatoes were sold for $1.70 per pound, with one customer purchasing 10.6 pounds of red tomatoes and 8.3 pounds of green tomatoes. Thus, the total revenue is calculated as follows: Total revenue = 1.7*10.6 + 1.7*8.3, leading to the total of $32.13.