Mario started with the expression 2(x+ y) + 5(x+7y), applied several steps and simplified the expression to 7x+ 37y.
Mario used problem solving to obtain 7x+ 37y. Write the steps using math properties to show
how he got his answer.

Step-by-step explanation:

Given

Required

Expand and identify the steps

Apply distributive property

Apply associative property

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