Please help this is an emergency

21°

Step-by-step explanation:

<CBE=<ABD=69°

in triangle ABD, <ABD+<ADB+<DAB=180°

69°+90°+x=180°

So, x= 21°

expression #3 is not equivalent. the others are.

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