Using prime factorization method , find the HCF b)18 and 15
c)16 ,32 and 48
e)27, 63 and 54

see explanation

Step-by-step explanation:

(b)

18 = 2 × 3 × 3 = 2 × 3²

15 = 3 × 5

The common prime factor = 3

HCF = 3

(c)

16 = 2 × 2 × 2 × 2 =

32 = 2 × 2 × 2 × 2 × 2 =

48 = 2 × 2 × 2 × 2 × 3 = × 3

The common prime factor =

HCF = = 16

(e)

27 = 3 × 3 × 3 = 3³

63 = 3 × 3 × 7 = 3² × 7

54 = 2 × 3 × 3 × 3 = 2 × 3³

The common prime factor = 3²

HCF = 3² = 9

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.