Well I figure you would use a ratio. we are given one when comparing 240 lbs to 180 calories for each mile:
240lbs/180calories = 1 mile
we.are.given another when saying a person. burns 36 calories in 1 mile. we don't know weight so we will say x lbs:
x/36calories = 1 mile
since they both equal 1 mile we know they are equal:
240/180 = 1 = x /36
we can get rid of the 1 in between and say:
240/180 = x/36
let's reduce first fraction
8/6 = x/36
cross multiply:
8*36 = 6x
divide both sides by 6
8*6 = x
x = 48
With long division the answer is 2411
C=

so
18.84=2*3.14r
18.84=6.28r
r=3

A=3.14*9
A=28.26 or when rounded is 28
Hope that helps
Can anyone else figure this out
The answer would be the first option (2.2, -1.4) it is the closest to where the two meet. Can I plz have brainliest? i need it