A convex polyhedron has (9a - 1) faces, (8a) vertices, and (16a) edges. What is the value of a?

Euler's formula: V + F = E + 2

a=?

Andrea spent two dollars to make 10 prints from the Photo Booth. Later she spent six dollars to make it 30 prints

The perimeter of a triangular plot of land is 2400ft. the longest side is 200 ft less than twice the shortest. the middle side is 200ft less than the longest find the lengths of the three sides of the triangular plot.

Brianna bought 1 3/4 pounds of cheese that cost $3.00 per pound. What is the total cost of the cheese?

If a triangle has a height of 12 inches and a base of 5 inches, what's its area? A. 90 sq. in. B. 45 sq. in. C. 60 sq. in. D. 30 sq. in.

Has a slope of 2 and passing through (10, 17)

Kailey wants to buy 4 pencils and 3 notebooks. witch expression shows how to find the total cost of 4 pencils and 3 notebooks. a. 3 ($0.50) + 4 ($2.25) b. 4 ($0.50) - 3 ($2.25) c. 4 ($0.50) + 3 ($2.25) d. 4 ($0.50) X 3 ($2.25)

If 48 men have ration for 16 days how long will the food last if a reinforcement of 16 men arrived

Explain how you know wether to choose grams or kilograms when measuring mass. Name an object you would measure each unit.

16:07:48 marks: Question: 1/20 The graph of which equation would be a circle with a center at (2.3) and a radius of 7? A. (x + 2y = (y - 3) = 7 B. (x - 2) = (y + 3) = 7 C. (x - 2y + (y + 3) 2 = 49 D.

Samuel wants to estimate what 5843 x. 00243 is. What should his first step be?