Which system of equations has no solution? OA) x + y = -6 x + y = 12 ОВ) y = 2x + 5 y=-3x + 1 OC) y = 4x -8 y = 2x - 4 OD) -5x + y = 7 x + 3y = 5

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

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!