Ans : What genre of movie is your favourite?
20/100 = x/750
Divide 750 by 5.
1/5 = 150/750
150 is your answer since we have both fractions in simplest form.
Un cuaderno = $5
Un lapicero = $3
7 cuadernos × $5 = $35
3 lapiceros × $3 = $9
$35+$9=$44
7 lapiceros × $3 = $21
3 cuadernos × $5 = $15
$21+$15=$36
Front estimation is using only the first value..
40+20+10=70
Hey !! here is your answer --
(5.7+2.2)-1.1
= 7.9 -1.1
= 6.8