Add and simplify (7x-6y+4z-1)+(-3x+3y-5z+3
i need the answer really fast plz who ever gets it first gets a brain list

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

How do you find the circumfrance of a circle?

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?