Amelia has 2.15 in coins. all of her coins are either quarters or nickels and she has 15 coins in her pile. how many of each coin does she have?

What is the total cost of two dozen erasers that are priced at 50 cent each if 8%sales tax is added.

Cody rents bikes for 18 dollars plus 5 dollars per hour. Motor paid 48 dollars to rent a bike. For how many hours did he rent the bike?

If quadrilateral abcd is congruent to quadrilateral efgh then what corresponding side is congruent to side gh

What's the circumference of a circle with a radius of 7in? Round your answer to the nearest inch

Daniel and William have some marbles. Daniel finds that 2/5 of the number of marble he has is 4/5 the number of marbles William has. William has 195 marbles. How many marbles does Daniel have?

What is 3 to the power of three halves equal to? cube root of 9 square root of 9 cube root of 27 square root of 27

75,000 live bacteria are present in a culture in a flask. When an antibiotic is added to the culture, the number of live bacteria is reduced by half every four hours. Approximately how many hours have passed when there are 2000 bacteria left alive?

Tina completed 2/3 of her homework. George completed 7/8 of his homework. Who completed a greater fraction of homework

A scientist is working with 0.9m of gold wire. How long is the wire in millimeters

A person who weighs 100 pounds on Earth weighs 16.6 lb on the moon. Which variable is the independent variable?