Simplify the numerical expression
2-(5.6-4^2)+7=

19.4

Step-by-step explanation:

2-(5.6-4^2)+7

PEMDAS

Parentheses first

(5.6-4^2)

Exponents

5.6 -16

Then subtract

-10.4

Replace the parentheses with -10.4

2-(-10.4)+7

Now add and subtract from left to right

2+10.4+7

19.4

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