Can someone plz help on these questions

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

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.

Which of the following parabolas opens down?