A balloon takes 1 minute to rise 60 feet in the air. Each minute after that, the balloon rises 40 percent as far as it did the previous minute. Which equation represents the total distance, d , in feet that the balloon rises in 6 minutes?
Answer
A
d is equal to 6 times open paren the fraction with numerator 60 plus open bracket 60 plus open paren 6 minus 1 close paren times 0 point 4 close bracket and denominator 2 close paren
B
d is equal to 60 times open paren 0 point 4 raised to the 6 minus 1 power close paren
C
d is equal to the fraction with numerator 60 times open paren 1 minus 0 point 4 to the 6th power close paren and denominator 1 minus 0 point 4
D
d is equal to 60 plus open paren 6 minus 1 close paren times 0 point 4