The cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is the $7 the number of people going the total cost the movie

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

What is an alternate exterior angle

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?