Joe drove 90 miles from San Francisco to Gilroy and used 4 gallons of gas. How much gas should he expect to use for a 2880 mile trip to New York City? What is the unit rate (mile per gallon)?

Answer 25 per gallon

Step-by-step explanation:

529 and 531

step-by-step explanation:

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