What are the types of roots of the equation below?

x^4 - 81=0

Four complex

Two complex and two real

Four real

Which equation represents the sentence? Five less than twice a number is equal to 57? A: 2 - 5x = 57 B: 2x - 5 = 57 C: 5 - 2x = 57 D: 2 (x - 5) = 57

Miss penny inherits £1200. The ratio of savings to spending is 7:8 how much does she save and spend

A dealer offers a computer software program whose list price is $500 at a 19% discount. She will give an extra 3% discount if paid in cash. What is the selling price if payment is made in cash?

What is the measurement of 3/4 in simplest form

Commutative vs associative property

Decide whether a discrete or continuous random variable is the best model for each of the following variables: (a) The time until a projectile returns to earth. (b) The number of times a transistor in a computer memory changes state in one operation.

The rquation of a citcle is x^2+y^2=16 what is the radius of the circle

BETH and Carley are selling candy bars to raise money for new cheer outfits. Beth has sold one less than twice the number of candy bars carely has sold. If they have 188 candy bars in all how many has Beth sold?

Mr. Smith has 28 sixth graders and 35 seventh graders. If he wants to break the two grades into identically sized groups without any students left over, how many students should be in a group

1. What is a perfect square? 2. What is the square root of 4x²? 3. What is the square root of 25? 4. Factor 4x² + 20x + 25.