The average of 7 numbers is 60. the average of the first three numbers is 50, while the average of the last three is 70. what must be the remaining number?

From the last two facts, we get

Then

step-by-step explanation:

i could only see the first page. the other pages were blurry. ; -;

x hot dogs for 2$, y drinks for 3$. 29 items and total 70

2x+3y=70

x+y=29

if x=17and y=12

2(17)+3(12)=70

34+36=70

y -5 = (-1/4)(x + 8)

step-by-step explanation: