Susan has a collection of 60 nickels and dimes . If the number of nickels is three times the number of dimes , how many nickels and how many dimes does she have Susan has

What are different types of statistical programs

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)