Answer:
1. D
2. x=65
Step-by-step explanation:
Hi!
Your answer is D because 78 is 120% of x
120% in decimal point is 1.2.
So it's 1.2x is the same as 120% of x
For question 8:
1.2x=78
Isolate x by divide 1.2 on both sides
78/1.2=65
C. x = 5
48 = 7x + 13
-13 -13
35 = 7x
5 = x
130,000 to 250,000
, so that 
but 
. Since 
, it follows that 
, and since 
, it follows that 
, which means 
.
