P: Parenthesis
E: Equation
M:Multiplication
D: Division
A : addition
S: Subtraction
So first you need to divide because it is before so you divide 18 by 6 which is 3 then you subtract (31 - 3) which gives you 28
answer : 28
Answer:
area formula: base x height 9x4=36
Step-by-step explanation:
Add it. average= sum of 2 counts/2