Answer:
<em>A line segment has two endpoints. A line has no end point. A line-segment has a definite length. But a line does not have definite length.</em>
Step-by-step explanation:
It is the third option 16x+9=4x
So examle
if reatil is 16, then tax is 1,
if reatil is 32, then tax is 2
proprtional is if
a/b=c/d
16/1=32/2
16=16
true
it is proportional
Given:
One time payment, <em>p </em>= $300
Payment per month, <em>q = </em>$65
Number of months paid, <em>n</em> = 5
The objectiv is to find the amount she paid in 5 months.
Let <em>x </em>be the amount she paid in 5 months. Then the the formula is,

Let's substitute the values.

Hence, total amount paid in 5 months is $625.
If 21 is added to (+ 21) a number (x) the result (=) is 40 less than (- 40) twice the number (2x)
x + 21 = 2x - 40 Add 40 to both sides
x + 61 = 2x Subtract x from both sides
61 = x Switch the sides to make it easier to read
x = 61