Describe the difference between algebraic expressions and numerical expressions

(See Below)

Step-by-step explanation:

A numerical expression involves the usage of numbers as well as operations, however, even though an algebraic expression also has all of those qualities, they also use variables.

Thats the difference.

answer: 100

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110