1) Neville purchased 3 sacks of 'Everyflavor Beans' and 1 Chocolate Frog from the trolley for a total of 13 Sickles. Luna also chose 3 sacks of beans and 3 Chocolate Frogs for 21 Sickles.
How much does each sack of 'Everyflavor Beans' cost?
How much does each Chocolate Frog cost?

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.

Explain how you can use the associative property to evaluate (7x50)x4.

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?