Several hundred people were surveyed about their salary and the length of their commute to work. The equation of the line of best fit for the data is y ≈ 1.14x + 1.45 and r ≈ 0.45. Does each phrase accurately describe the data set? True or false A. The variables have a strong correlation. True or false

B. The variables have a positive correlation. True or false

C. This study shows that there is no
correlation between the length of a
person's commute and their salary. True or false

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a