What are the types of roots of the equation below?

x^4 - 81=0

Four complex

Two complex and two real

Four real

What is the value of 0.812

3. TU = 2x, UB = 3x + 1, TB = 21

5x2?. Is equal to 6*2

Find the greatest common of 75, 8, and 21

Carol constructed a cube and marked each face with a number. She marked the faces with the numbers 1, 2, 2, 3, 3, and 4. If she rolls the cube twice, what is the probability that the sum of the numbers will be exactly 7?

Jennifer currently brings in an annual salary of $65,000 and anticipates a raise of 5% every year. What will her salary be in 5 years?

A square plot of land has a building 60ft long and 40ft wide at one corner. the rest of the land outside the building forms a parking lot. if the parking lot area is 12,000ft^2, what is the dimensions of the entire plot of land?

Tammy, Brian, and Dale have $127 in their wallets. Dale has 3 times what Tammy has. Tammy has $7 less than Brian. How much do they have in their wallets?

X/m-x/n=1/p solve for x

How can you use inequalities to represent real-world problems