A is a testable claim or statement, that is yet to be tested, concerning the relationship among variables that can be observed.

Hypothesis                                              

Step-by-step explanation:

Hypothesis:

A hypothesis is a testable claim or statement, that is yet to be tested, concerning the relationship among variables that can be observed.

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

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