How can I derive the formula for circumference and how can it be used?

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

the answer is 24

step-by-step explanation:

answer: do we write it

step-by-step explanation: