The x, which is a letter that stands for or represents an unknown value/number, is called the:

Tony had 30 toy cars and Giovanni had 6 times more than tiny how many cars did Giovanni have?

The price of a gallon of milk went from $2.70 to $3.50 in four years. Find the rate of change of the price of milk.

What is the solution to - 8 = - (x+4)

Bo's checking account has a balance of 213.24. He has two debits of $27.16 and $15.25, what will be his new balance.

Bryan is laying down sod in his yard to grow a new lawn. each piede of sod is a 1 foot by 1 foot square. How many pieces of sod will bryan need to cover his yard if his yard measures 30 feet by 14 feet?

What is 23 * 47 rounded to the nearest hundred

Mae king earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. how much would she make in a work week if she sold $4,800 worth of merchandise?

A color printer will print 8 pages per minute. how many minutes will it take to print a report that has 136 pages?

A company is selecting students for interviews at the career fair. The number of students selected from university A is given by Rx) = 4x + 5, where x represents the number of days of the fair.

2. Josh and his brother will drive from Boston to New York, a distance of 220 miles. If - they drive an average speed of 50.5 miles per hour, how long will it take Josh and his brother to arrive in New York? Round to the nearest tenth.