Which equation best represents this situation?

the sum of an unknown number added to 35 equals 70.

a.

35 + b = 70

b.

35 ÷ b = 70

c.

35b = 70

d.

35 – b = 70

i dont know it

step-by-step explanation:

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