1.75 hours, add them up and divide by two and you get your answer
The solution to the question how much was the total cost for the seminar is shown below:
Cost 1 = $ 340 for the total wages for the group
cost 2 =$5 x 5 employees, this is for the refreshments
cost 3 = $75 for the instructors fee
cost 4 = $250 for the supplies and others
Total cost = cost1 +cost2 +cost3 + cost 4
Total cost = $340 + ($5*5) + $75 + 250
Total cost = $690
<span>The figure is a square pyramid. A slice made perpendicular to the base and through the vertex creates a cross section with the shape of a triangle. A slice made perpendicular to the base and not through the vertex is a trapezoid.</span>
Let the total number of cars = 100
Total of sedan, van and sports cars = 39+33+7 = 79
Number of other cars = 100 - 79 = 21.
Let A be the event of owning a sedan,
B be the event of owning a van and
C be the event of owning a sports car.
D be the event of owning other cars.
Then, 
and


Now,
p(non selection of van) = p(A ∪ C ∪ D)
= p(A) + p(C) + p(D)


= 0.67
The probability of none of the three selections would be a van is:
0.67 × 0.67 × 0.67
= 0.300763
=0.301
Hence, the correct option is (D).