I just need number 2. Pls help

Step-by-step explanation:

3x=90-39

3x=51

x=51÷3

x=17

:

x = -2

y = 848

step-by-step explanation:

plug in the numbers

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