Sonia uses a gift card to purchase a $5.87 gourmet coffee each week. Find the total change in the gift card balance after 3 weeks.

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.

In the geometric progression –3, 12, −48… what term is 3,072?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?