It’s the mean!
good luck!!
Answer:

Step-by-step explanation:
Given


Required
Find the measure of a
Since there is no diagram to support the question, we'll assume that:

This gives:

Subtract 22 from both sides



Answer:
1900
Step-by-step explanation:
let a = total seats
the number of students that filled the theatre can be represented with this equation
0.45 x a = 855
divide both sides by 0.45
a = 855/0.45 = 1900
Answer:
A
Step-by-step explanation:
His commision was 0.06(160000-20000) = $8400.
His salary was $10,000.
His bonus was $500.
Adding these together, we get $18,900.