What does irregular mean on a shape

Denise used her credit card to buy a pair of new shoes for $120. At the end of the month, she could only make a payment of $20 on the credit card.

The common ratio is 2 40, 20, 10, 5, ...

The Holy Roman Empire was a group of regions in Central Europe that was held together by a political union. The Holy Roman Empire was formed in the year 962. Let x represent any year.

Marą purchased a cell phone for $30. This amount Includes a 6% sales tax. What was the cost of the item before tax?

What is thexpected inequality 3x-4y>12

Find the area of a rectangle whose length is 8 and breath is 3

A medical researcher is working on a new treatment for a certain type of cancer. The average survival time after diagnosis on the standard treatment is two years.

Fill in the missing terms of the following sequence 12,_,_, - 3, _, - 13

Factor out coefficient of 3/8d+3/4

Terrance trains at a rate of 6 miles every half hour and Jesse trains at a rate of 2 miles every 15 minutes