Scientists have calculated that the Earth is 454 000 000 000 years old. How many billion years is this?

Carrie and Dave each rent the same size moving truck for one day. They pay a fee of x dollars for the truck and y dollars per mile they drive. Carrie drives 150 miles and pays $215. Dave drives 120 miles and pays $176.

Cual es la temperatura del jueves 9 de julio de 2015 a las 10 hs en el calafate?

The angles of a triangle are such that one angle is 100 degrees more than the smallest angle, while the third angle is 2 times as large as the smallest angle. Find the measure of all three angles.

Solve the system of equations - 2x+y=5 x-3y=-30

It's the holiday season and you are working for a packing company that specializes in holiday fruit cakes.

80% of how many days is 32 days

Find the value of ab:bc when a=6 b=0.9 and c=5

Are the following ratios proportional? Explain why or why not. 3 to 8; 7:20

Find the zeros of the function. f (x) = 9x2 - 27x + 20

What is 1,364 divided by 62