What is the first step in simplifying the expression (2 - 3 x 4 + 5)

Multiplying -3 and 4 to get -12

The first step is multiplying -3 and 4 because they are all in parentheses and using PEMDAS

P-Parentheses

E-exponents

M-multiply  or   D- division            (whichever is first in the expression)

A-addition  or  S-subtraction        (whichever is first in the expression)

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

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8