1. Angela was doing her homework when her dog bit off a piece of paper. All she had left was the start
of the sequence: 4, 12, ... and the fact that 972
was some term of the sequence.
a. If the sequence is arithmetic, what is the
equation of the n term?
Z

t(n)=8n-4

Step-by-step explanation:

8 is the common difference and -4 is the 0th term.

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

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .