Respuesta:
ok :D
Explicación paso a paso:
a.
15 = 100%
10 = 66.6%
b.
100% = 380 : 100
1% = 3.8
5% = 3.8 · 5
5% = 19
380 + 5% = 380 + 19 = 399
c.
100% = 375 : 100
1% = 3.75
60% = 3.75 · 60
60% = 225
375 - 60% = 375 - 225 = 150
