If 0.25=81 what is x

Nick has 31 coins, make up of quarters, nickels, and dimes. if he had one more dime, he would have just as many dimes as he has nickels and quarters put together. if the total value of nick's coins is $4.70, how many coins of each does he have?

What is 9+10 x 2x4?!

When using water displacement to measure the volume of an irregularly shaped solid, like a rock, which of the following would be a more appropriate unit to convert milliliters to? cubic centimeter gram liter centiliter

Describe the variation 3xy = 5. A. y varies inversely as the square of x. B. y varies inversely as x. C. y varies directly as x. D. y varies directly as the square of x.

Solve the inequality. 3p+7<31

Jerry has two same size circles divided into same number of equal parts. One circle has 3/4 of the party shaded and the other has 2/3 of the part shaded. His sister says the least number of pieces each circle could be divided into is 7.

An alloy is composed of nickel, zinc, and copper in a5:4:8 ratio. How many kilograms of each metal are needed to make 3.4 kg of this alloy?

A scientist inoculates mice, one at a time, with a disease germ until he finds 2 that have contracted the disease. if the probability of contracting the disease is 1/6, what is the probability that 8 mice are required?

You want to buy some rice. A 7-ounce package costs 2.59. A 12 - ounce package costs $4.56. An 18-ounce package costs 6.30 which package is the Best Buy?

Kenya is reserving a room in a hotel in France where they use euros (€). The room charge is €75. Suppose the conversion rate is €1 = $1.298. What is the cost of the room in dollars? $57.78 $77.56 $97.35 $129.80