Question

spammers stay away.
wrong answers will be reported.
right answers will be marked as brainliest. ​

Answer 1

Answer:

(i) 9.81$+(300x0.086$) = 35.61$

(ii) (20.56$-9.81$) ÷ 0.086$/min = 125minutes usage(2hrs and 5 minute)

(iii) 0.086n+9.81=C by multiplying both ends with 1000 we get 86n+9810=1000C