Intr-un grup sunt 28 de elevi. daca din grup pleaca patru baieti, atunci numarul fetelor devinde de trei ori maim are decat al baietilor. cati baieti si cate fete erau initial in grup?

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

the answer is d

hope this