HCF 128, 192, and 80?

HCF = 2 × 2 × 2 × 2

= 16

Step-by-step explanation:

2 128 192 80

2 64 96 40

2 32 48 20

2 16 24 10

8 12 5

At this stage there is no common factor for the three numbers

HCF = 2 × 2 × 2 × 2

= 16

16

Step-by-step explanation:

Express each number as a product of it's prime factors

128 =

192 = × 3

80 = × 5

Identify those prime factors that the numbers have in common and multiply them.

The common factor of all 3 numbers is

HCF = = 16

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you