What type of number is

- square root 81?

Select all that apply.

Whole number

Integer

Rational

Irrational

Lucy makes green paint by mixing yellow and blue paint in the ratio 5:2. Blue paint costs £30 for 5 litres and yellow paint costs £28 for 7 litres. Lucy sells her green paint for £4.50 per litre.

Describe the error in the work shown below. Find an expression equivalent to 18 + 30. Factors of 18: 1, 2, 3, 6, 9, 18Factors of 30:1,2,3,5,6, 10, 15, 3018 + 30 = 6 (3 + 10)

The area of a triangular block is 64 in.². If the base of the triangle is twice the height how long are the base and the height of the triangle

Which of the following represents four hundred five thousand, fifty-six written in expanded form?

What is the 11th term of the sequence 1,2,4,8,16 answer choices 32 192 1024 2048

Determine the sign of cos pi divided by seven without using a calculator. Positive Negative

Helga and Julie are sisters. Helga is six years younger than twice Julie's age. The sum of Helga's age and Julie's age is 36. Write an equation that can be used to find Helga's age

Hong rented a truck for one day. There was a base fee of $20.99, and there was an additional charge of 83 cents for each mile driven. Hong had to pay $175.37 when he returned the truck. For how many miles did he drive the truck?

If I produce 6 items a day how many days before I reach 180 items

What is the answer to - 3 + - 5