Answer:

Step-by-step explanation:
<u>Step 1: Multiply
</u>




Answer: The correct answer is -1
21
E (225-25n)
n=1
So its D.
Answer: 1100
Step-by-step explanation: mark x for the total sum.
0.35x+ 0.20x + 495 = x. 495= x-0.35x-0.20x
495= 0.45x. X= 495/0.45
Answer:
x=1 y= 7
x=2 y= 10
x=3 y= 13
Step-by-step explanation:
y=3x+4
y=3(1)+4
=7
y=3(2)+4
=-10
y=3(3)+4
=13
The graph of f(x)=2(3)x would look like this