The solution is solved as the following:
10 + 10(2a - 4) + (8a - 6)
10 + (10 * 2)a + (10 * -4) + 8a - 6
10 + 20a -40 + 8a -6
28a - 36
394+12.5+49.5+39+19.95=514.95,
25.7475+514.95=540.6975
12 lessons*20=240
Grand total is 780.6975
That would be <span>0.00000171</span>, if I'm not mistaken
13cm because i took the test
Hey! Thanks for using Brainly.
Could you add a attachment or the question so we can know the two notes in the question? Once you do that I can assist you further.
Looking forward to hear your response.
Have an amazing day! :)
