Which is the algebraic expression for "two times the sum of a number and four'? *Someone save me.*

2x+4

Explanation:Let the number be 'x'.

Two times the number =2⋅x

Twice the number + four=2x+4

step-by-step explanation:

in which figure is point g a centroid

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