A (15.4-8.1=7.3) has two significant figure so A is the ANSWER
while the all other options has 3 significant figure
<h3>
Answer: B) 1 & 3</h3>
Explanation:
Vertical angles form when we have an X shape like this. They are opposite one another and always congruent. Angles 2 and 4 is the other set of vertical angles.
Assuming you are asking the simple question of
39x5=195
By taking 9x5 = 45 and 3x5 = 15 add 4 to 15.
