Van: 20, BUS: 28 6) A plane traveled 672 miles to Seoul and back. The trip there was with the wind.
It took 6 hours. The trip back was into the wind. The trip back took 12 hours. What
is the speed of the plane instill air? What is the speed of the wind?

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

$113.42

i hope that is right.

step-by-step explanation: