M=2, 1.2*2-3.6 = 2.4-3.6=-1.2 = -0.6*2, convinced?
Just square to find them to buy the answer by a dividend then the fraction of the answer then you get your answer
Answer:
11 play the flute and piano, while 14 play the flute and 3 play the piano separately, and 10 play neither. That would tell me that it’s just simple addiction, so...
11+14+3+10=38
There are 38 pupils in the class.
$79.99 x 12% = $9.5988 merchandise discounted
$79.99-$9.5988 = $70.3912 rounded $70.39 sales merchandise
$70.39 x 6.75%= 4.7513 sales tax
$70.39 + $4.7513= $75.1413 or
the answer rounded is: $75.14
