Number 15 asap with an explanation if possible

D 1/40

Step-by-step explanation:

Of the dogs at the show, 1/12 were hounds

Of the hounds, 3/10 were English foxhounds

To determine how many at the show were English foxhounds, we multiply 1/12 by 3/10

1/12* 3/10 = 3/120 = 1/40

2/3 =x

Step-by-step explanation:

4                 x

  =

6(x+4)         x+4

Multiply the right  side by 6/6

4               6  x

  =

6(x+4)      6( x+4)

Since the denominator is the same, the numerators have to be the same

4 = 6x

Divide each side by 6

4/6 =x

2/3 =x