Given:
Tracy received a $21.00 gift card for phone apps. She has used $9.00 of the value and wants to buy one more app from the list shown to use up the balance.
Required:
Determine which app she should buy.
Explanation:
She has used $9.00 of the value and wants to buy one more app
using the formula 21 =x +9
So, x =12 will satisfy the expression.
Answer:
Hence, remote desktop is the correct.