Which equation is true for any value of x?
o
13 – 6: = 3.- 3 + 3x
o 7 + 2x + 2 + 3x
= 4x + 9 + 2
2x + 6+ 7x – 3 = 9x + 5-4-2
o
14 – 72 +x= 14 - 8x

1997- $3.38
Rounding to the nearest tenth of a dollar would be rounding to the first number after the decimal point (the tenths place), and the number(s) after that would be zero.
$3.38 rounds up because the digit after the tenths place is 8, which is more than 5, so the final answer is $3.40.

198- $2.65
This one is trickier because your number ends with a 5 in the hundredths place.  However, most math books would want you to round up when you have a 5, so the final answer is $2.70.