Which is an algebraic expression for 5 more than a
A 5z
B z+5
C 5z+5
D 5-z
To find an algebraic expression for "5 more than a," you need to start with the variable a and add 5 to it.
Option A, 5z, includes a variable z instead of the variable a, so it's not correct.
Option B, z+5, represents adding 5 to the variable z, rather than a. So this one is also incorrect.
Option C, 5z+5, is the correct expression because it begins with the variable a and adds 5 to it.
Option D, 5-z, subtracts the variable z from 5, rather than adding 5 to a. So this one is also incorrect.
Therefore, the correct answer is C, 5z+5.