In 2019 a large pizza cost $15.50. Today, a large pizza costs $20. What is the percent increase? Round to the nearest whole percent.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?