The fire department is having a BBQ fundraiser. The hot dogs costs $1.50 each and cans of soda cost $0.75 each. The department uses the algebraic expression 1.50x + 0.75y to calculate
customers’ total expenses.
a. What does the x variable represent?
b. What does the y variable represent?
c. A family buys 7 hot dogs and 4 sodas. What are their total expenses?

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140