Last school year, the Mathematics C lub of the school raised ₱1 800 from a fund-raising activity. This year’s collected is ₱450 more than the previous
year. What is the percent of change?

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

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.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?