Exercise 1c (Revision) Find the HCF of the following: 2. 30 and 45 4. 18 and 30 6. 24 and 78 8. 216 and 168 10. 72, 108 and 54

step-by-step :

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

y=-2x+1500

step-by-step explanation:

+1500

2 over one