Answer:
the answer to that, f= -5/3
Answer:
180/45 = 4/1, he did 4 situps in 1 second.
Answer:
y=30, x=10
Step-by-step explanation:

Answer:
6 -

3² -

7 -
= 
Step-by-step explanation:
1. 6 - 
First, apply the exponent to 2/3. Because it's to the second power, multiply 2/3 by itself.

6 - 
Now, subtract.
6 -
= 
------------------------------------------
2. 3² - 
First, apply the exponent.
3² = 9
9 - 
Now, subtract.
9 - 

------------------------------------------
3. 7 - 
First, apply the exponent.
= 
7 - 
Now, subtract.
7 - 
hope this helps!
40,768/52 (weeks per yr)= 784