a real estate agent, working on commission, makes average of $850 a week with standard of $260 a week selling property i the city and an average of $1340 a week with a standard of $390 a week selling property in the suburbs. assuming independence of what she sells in the 2 locations, what the mean and standard of her total weekly earnings

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.  

$450 i think. hope this ☺