3. Hugo tem uma caminhonete com a qual faz fretes. Ele cobra uma taxa fixa de R$ 90,00 mais R$ 2,85 por quilómetro rodado.
a) Escreva uma fórmula para calcular o preço P pago por um frete cujo
percurso é de x quilómetros,
b)Qual será o preço cobrado por Hugo por um frete cujo percurso tem 20km?

need more info

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