Which of the following equations are an example of direct variation?

a) y = - 1/2x

b) y = 3x - 5

c) y + 3 = x

d) y = x + 2/5

Matt has 16 CDs. How many ways can he arrange the CDs so they are in equal rows?

Taquiah set her iPod so that she listens to every song for the same amount of time. In twenty minutes she listened to 8 songs. How many songs could she listen to in a minute

A week of adventure often starts at the airport or in the family car. Any news about falling gasoline or air ticket prices is, therefore, good news. Crude oil is used to make both gasoline and jet fuel.

Make u the subject of the formula D=ut + kt2

The perimeter of a rectangle is 34 units its width is 6.5 units write an equation to determine the length of the triangle

Six identical square pyramids can fill the same volume as a cube with the same base. If the height of the cube is h units, what is true about the height of each pyramid? O The height of each pyramid is 1 h units.

True or false, a fraction never indicates a ratio

2x+3y+z=4 -3X-4+52 = 1 X+3y=5

5 , - 15 , 60 , - 300 , 1,800 , - 12,600

The order of magnitude for the population of the world is five. true or false?