Two more than 4 times a number is -18

4n + 2 = -18    and  n= -5

Step-by-step explanation:

4 times a number  is the same as the expression, 4n  where n is the number   and two more than that is 4n + 2.   If it is  -18, then it means it is equal to -18.

4n + 2 = -18   You can solve for a by subtracting -2 from both sides

    -2       -2

4n  = -20    Divide both sides by 4.

n = -5

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

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