Joel is training for a marathon. right now he can run 3 miles. in two weeks he plans on running 5 miles, in four weeks he plans on running 8 miles.

if joel's mileage continues growing with the same pattern, how many miles will he be running in 10 weeks?
a) 15
b) 17
c) 23
d) 26

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

table 3 represents a direct variation function. : )