Which property is demonstrated? 5 + 8 + 15 = 5 + 15 + 8 a. associative property of multiplication b. commutative property of addition c. associative property of addition d. commutative property of multiplication

Two different linear functions are shown below with two points given from each function. use slope-intercept form or point-slope form to find the equation of each. linear function a points: (–5, –2), (–5, 7) linear function b points: (7, –5), (–2, –5) function a has: the equation of line a is: function b has: the equation of line b is:

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.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?