Bailey's rectangular dog pen for his Irish Setter must have an area of 400 square feet. Also, the length must be 20 feet longer than the width. Find the dimensions of the pen.

A shirt originally cost $49.31, but it is on sale for $41.91. What is the percentage decrease of the price of the shirt? If necessary, round to the nearest percent.

What Is the value of the underlined digit in 5 such as 56.13

Janet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she has hiked 5 days in the past week. How many miles has Janet hiked in the past week?

If n represents a number, then write an expression for the difference of three times the number after it increased by 3 and twice that number

Simplify (5t + 2) (5)

An art gallery has 8 new paintings, all the same size, but enough room on the wall for only 6 of them. How many ways can the director arrange the 8 paintings on the wall? A. 48 B. 28 C. 20,160 D. 40,320

There are 36 people in newtown hiking club. 2/3 of the club must vote yes if the club is to hike the northern trail. 20 people have voted yes. how many more yes votes are needed?

One revolution of a 40 cm diameter ball compared to a 20 centimeter diameter ball is: A. 2 times as great. B. 4 times as great. C. The same D. 1/2 times as great.

Complete the equation of the line through (2,-2) and (4,1). Use exact numbers.

The distance between two towns is 15 miles. There are 20 distance markers evenly spread throughout the road between the towns. Jessie drove 45 of the distance when she was forced to stop because she ran out of gas.