Answer:
c=3
Step-by-step explanation:
<h2>SOLVING</h2>

What is the slope of the line passing through the point (1,2) and (5,4)

Formula used, here 
_______________________________________________________
| simplify
| reduce





Answer:
(a) 9
Step-by-step explanation:

substitute r = 4, t = 2

simplify

cubic of 2 is 8

simplify

Answer:
2.56 * 10^11 L
Step-by-step explanation:
1 body has 40 L
Thus, the amount in 6.4 billion would be;
40 * 6.4 * 10^9
= 256 * 10^9
= 2.56 * 10^2 * 10^9
= 2.56 * 10^11 L
Answer:

Step-by-step explanation:

Combine 

Combine the bottom, too.

Apply the fraction rule

Cancel

Therefore, 