need help and for the chare show your work and for the rest u dont need to show ur work and if u are not sure if u got it right then plz dont ancer

need help and for the chare show your work and for the rest u dont need to show ur work and if u are not sure if u got it right then plz dont ancer class=
need help and for the chare show your work and for the rest u dont need to show ur work and if u are not sure if u got it right then plz dont ancer class=
need help and for the chare show your work and for the rest u dont need to show ur work and if u are not sure if u got it right then plz dont ancer class=

Respuesta :

#25
210 / 0.42 = 500
answer: 500 people were surveyed

#18
22.50 x 1.15 = 25.875
answer: $25.88 (third choice)

#19
550 x 0.07 = $38.50
answer: $38.50 (third choice)

#20
$160 x 0.4 = $64
answer: $64 (third choice)