A convex polyhedron has (4a) faces, (6a) vertices, and (8a + 2) edges. What is the value of a?

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

a =

A woman invested 3 times as much at 6% as she did at 3%. The total amount of interest she earns in 1 year from both accounts is $1,470. How much did she invest at each rate?

Jenaya is reading a book. She is 75% finished. She read 120 pages. How many pages is the total book?

What decisions do you have to make when you write an equation to represent a relationship between variables

The largest butterfly in the world is found in papua new guinea the female of. the species weighs about 9/10 ounce. use a decimal to write the female's weight.

7. A school supply company packages the erasers shown below in boxes of 12. How many cubic inches does the package contain? 2 in .5in Find eraser)

The produce place sells cranberries in bulk for $2.40 a pound. The store also sells and 8 ounce package for $1.50. Which is the better buy? Show all work!

A pump discharges 278 gallons of water in 3.5 minutes. How long would it take to empty a container with 750 gallons? Round up to the nearest minute

Round these numbers to the nearesth hundredth~ 1. 0.285 2. 0.116 3. 0.709 4. 0.563

By what percent is 70 less than 200

Stefan has been given two segments and the measure of an angle between them. He is trying to construct a congruent triangle. He has just finished one of the steps of the construction. Which step has he just finished?