simplify: x^2-49

x^2+x-56
the symbol ( ^ ) means that its the little number above the variable. this is a rational expression.
the choices are as follows:
a. x-7

x+8
b. x+7

x+8
c. x+7

x-8
d. x-7

x-8

"if it is my birthday, then it is snowing"

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