How do you evaluate #n^2/m# if m=2, n=5? Algebra Expressions, Equations, and Functions Variable Expressions 1 Answer smendyka Nov 4, 2016 #12.5# Explanation: Everywhere in this formula where there is an #m# substitute #2# and everywhere there is an #n# substitute #5# and then do the arithmetic: #5^2/2 = (5*5)/2 = 25/2 = 12.5# Answer link Related questions How do you write the variable expression for: a quotient of 2 and the sum of a number and 3 ? What are variables? What are variable expressions? How do you write variable expressions? How do you evaluate variable expressions? How do you simplify the expression #3x-x+4#? How do you write a quotient of a number and 6 as an expression? How do you evaluate the expression #2x+1# for #x=1#? How do you write a product of a number and 2 as an expression? How do you write 5 less than 2 times a number as a variable expression? See all questions in Variable Expressions Impact of this question 1386 views around the world You can reuse this answer Creative Commons License