Last year there were 15 porcelain dolls in Lanny's collection, after trading for a rare doll, she now has 12 dolls. What is the percent decrease of her collection?

Y=-8x - 37 x+3y=4 Substitution method

What is the value of y if x = 8? y = 4 + x + 6

Some roads in Poland have a speed limit of 140 km/h. How fast is this in miles per minute?

You have 555 reindeer, Bloopin, Rudy, Ezekiel, Prancer, and Balthazar, and you want to have 333 fly your sleigh. You always have your reindeer fly in a single-file line. How many different ways can you arrange your reindeer?

What is a numerators characteristics

What is the simplified form of this expression, written in scientific notation? (1.5*10^7) ⋅30,000⋅ (6.7*10^5)

A perfectly cylindrical candle has a volume of 125.6 cubic inches. Find the area of its base if the height is 10 inches

Which expressions are equivalent to 76 (3 + c) ?

The difference of 7 and a number x is 10

in 1995, there were 12,000 students at Beacon High. In 2000, there were 12,250. What is the rate of change in the number of students