.87 is correct you can always check your work with an online calculator. :)
Answer:
0.064
Step-by-step explanation:
solve the btackets first then the powers then start multiplying
You get the length and you times it by the width giving you the answer
Answer: a=1.4
Step-by-step explanation:
move the 0.1a to the other and the 7 to the other side which will make the 7 positive and the 0.1a negative.
5a-0.1= 4.9a
-0.14+7=6.86
dive both sides by 4.9 and you get
a=1.4