Suppose a 5-minute overseas call cost $5.91 and 10 min call cost $10.86. the cost of the call and the length of the call are linearly related. the each minute is constant.
what is the cost, c, of all of m minutes’ duration

yes. we do proportions in probabilities.

true !

step-by-step explanation:

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of

substitute,

circle 1 = 5

circle 2 = 20

circle 3 = 44

in this case no matter how you add, you will always get a perfect square..

hence proved

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