30 ! will mark you

the graph below shows the heights and arm spans of students in a class.

what association is there between height and arm span?
a positive correlation
no correlation
a very weak correlation
a negative correlation

a positive correlation

Step-by-step explanation:

We know that on a coordinate plane, a positive correlation exists when one variable increases as the other variable increases.

From the given graph, there is a positive correlation between the heights and arm spans of students in a class. because as the heights  increases the arm spans of students also increases.

Therefore, there is a positive correlation  between height and arm .

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

96 39 cause 135 -96=39 im smart (i used a calculater)