I NEED HELP NOW YOU WILL GET BRAILIEST
-21 = 0.07z−21=0.07z what does z equal

z = -300

Step-by-step explanation:

-21=0.07z

-21/0.07= 0.07z/0.07

-300= z

If this helps please mark brainliest.

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