determine if the expression -a^3 is a polynomial or not. if it is a polynomial, state the type and degree of the polynomial

It a polynomial

It is a monomial

3rd degree

Step-by-step explanation:

is a polynomial

It is a 3rd degree monomial.

Hope this helps!

b is the answer that makes most sense

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