How many real roots does the following equation have?

x4 - 81 = 0

A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 140 lb and each box of books weighs 40 lb.

At brians bookstore 0.3 of the shelves hold mysteries 25% of the shelves hold travel books and 7/20 of the shelves hold childrens books. which type of book covers the most shelf space in the bookstore

Increase $250 by 3.5%

Lonnie divides a pipe into 10 inch sections. Each section represents 1/8 of the pipe's length. What is the original length of the pipe?

A computer printer can print a 900 word document in 12 seconds. At this rate, how many seconds are required to print a document that contains 1200 words?

How is a debit card differ from a credit card

Daca ar mai avea 152 lei, Radu si. ar putea cumpara un joc de 275 lei si 2 carti a cate 35 lei. Cati lei are Radu?

Which expressions have a value of - 1/64? Check all that apply.

Which value for R in the table would most likely indicate an association between the conditional variables? 0.09 0.10 0.13 0.79

What is 1.2:33.6 is the answer 28?