Answer:

Step-by-step explanation:
First we turn them into improper fractions 

then we multiply it

 
        
             
        
        
        
Answer:-7
Step-by-step explanation:do absolute value first and then put the negative sign
 
        
             
        
        
        
Answer:
a
Step-by-step explanation:
20-9=11
 
        
                    
             
        
        
        
Answer:
y = 7.5
x = 7.5√3
Step-by-step explanation:
sin(30) = 1/2
cos(30) = √3/2
Above is rule
==>
y = 7.5
x = 7.5√3
 
        
             
        
        
        
3 * 2 ^ 2 < 16 + 5
should be performed in the order PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)/
Therefore, obtain
3 * 2 ^ 2 < 16 + 5
3 * 4 < 16 + 5           Exponentiation first
12 < 16 + 5               Multiplication second
Similarly, obtain
100 / 10 * 2 > 15 - 3
100 / 20 > 15 - 3      Multip[lication first
5 > 15 - 3                  Division second