Jack has 9 coins, consisting of only quarters, dimes, nickels, and pennies, with a total value of $1.31. He has as many quarters as nickels and dimes combined, and he has half as many pennies as dimes.
How many nickels does Jack have?

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Describe the domain and range of y=2(3)^x-2+5