Kendra is buying gifts for 5 friends. She can spend $100 at most. She has
already spent $28 on one gift. If she
wants to spend the same amount on
each of the other 4 gifts, what can she
spend at most on each gift?

She could spend $18 on each for the 4 friends

Step-by-step explanation:

100-28= 72

72/4=18

the first one, all those points on the line just make a strait line.

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