Answer:
7. 4
8. 7
Step-by-step explanation:
7. 
Cross multiply


(division property of equality)


8. 
Cross multiply


(addition property of equality)

Divide both sides by 6


The solutions to f(x) = 64 is x = 7 and x = –7.
Solution:
Given data:
– – – – (1)
– – – – (2)
To find the solutions to f(x) = 64.
Equate equation (1) and (2), we get

Subtract 15 from both sides of the equation.



Taking square root on both sides of the equation, we get
x = ±7
The solutions to f(x) = 64 is x = 7 and x = –7.
Answer:

Step-by-step explanation:
Given
3 ×
← can be expressed as
× 
Multiply numerators/ denominators, that is
= 
= 
Answer:
-5.2, -4.75, -9/2
Step-by-step explanation:
Answer:
b is right
Step-by-step explanation: