What is 8.1 in a fraction

An open box is constructed of 3500 cm2 of cardboard. The box is a cuboid, with height hcm and square base of side xcm. What is the value of x which maximises the volume of the box?

Max charges $3.50 per hour when he mows lawns, plus $6.00 for transportation expenses. Which function rule represents the amount y, Max charges to mow lawns for x, hours? I think it would be y = 3.50x + 6.00 Can someone confirm it?

Combine like terms in the following expression: x^2 + y ^3 + 4x^2 a. y + 5x b. x ^5 + 4 c. y ^3 + 5x^2 d. y ^3 + 4x^2

What is the diffrence between 22 5/9 and 14 1/5

What is an expression for the amount of money you can save if you use 5/6 Of your wages for spending money? Evaluate your expression for weekly wages of $60, $120, $180 and $300.

How do you know if a number is smaller or bigger

A bookmark has a perimeter of 46 centimeters and an area of 102 square centimeters. What are the dimensions of the bookmark?

Which expression shows how to use place value and the distributive property to find 56 (82) ? 56 (80) + 56 (2) 56 (8) + 56 (2) 50 (6) + 80 (2) 50 (80) + 6 (2)

The expanded form of 10 to the power of 0

Five is three more than a number n. I don't understand this at all!