You can't solve it without another piece of information, so the most you can do is write an equation (3b+ 4p), and once you know how many boxes he bought and the total (to figutre out how many pounds) or how many pounds and the total (to figure out how many boxes) or just the number of boxes and the number of pounds you can figure the problem out.
Answer: y-(-6)=1/5(X-(-4))
Step-by-step explanation:
to put together a point slope expresion the equation would be y-y1=m(x-x1)
y1 and x1 being the points on the line and (m) being the slope
The answer for this question is
11/3
Slope intercept form is y = mx + b
7 tickets for $5 means that 1 ticket costs 5/7 dollars
So for part a, the slope intercept form would be:

where x is the number of tickets, and y is the price.
For part b)
The slope intercept form is:

where x is the number of all you can ride wristbands you buy, and y is the total price.