You have $60 to spend on books and each one costs $6 write and inequality for the possible number of books, b, you could buy and find out the maximum number of books you can buy

a). 6 n≤60, n≤10

b). The maximum number of books you can buy=10

Step-by-step explanation:

a). Step 1: Derive expression

Total cost of the books can be expressed as;

T=p×n

where;

T=total cost of book

p=cost per book

n=number of books to be bought

In our case;

T=$60

p=$60

n=n

replacing;

Since she has a limited budget of $60, the total cost of the book should not surpass $60

60≥6×n

6 n≤60

b). n=60/6=10

The maximum number of books you can buy=10

look a the sides they are perpendicular

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