Ross weighs 30 packets of sweets and finds the total mass is 1.5kg. He also weighs 25 chocolate bars and finds the mass is 1kg. What is the difference in mass between a box of packet of sweets and a chocolate bar?

A rectangle has side lengths (2x-5) meters and (2x+6) meters. write and simplify an expression to represent the perimeter of the rectangle

12) Beginning with the quadratic equation y = ax2 + bx + c, Fred calculated and then plugged that number in for x to get a y.

Solve for x ... 5x+18=45

A jar of mayo is shaped like a cylinder. The radius of the jar is 1.5 I Chen's and it's height is 7 inches. The mayo sells for0.08$ per cubic inch what is the cost of the mayo

How much water is in an empty glass that is 10cm high and has a diameter of 5cm

The coordinates of the vertices of triangle ABC are given in the table. A B C (4,2) (6,7) (13,1) Triangle ABC is reflected across y=-x. What are the vertices of triangle A'B'C'? Enter your answers in the boxes. A': (, ) B': (, ) C': (, )

What is the solution to this equation? 3x - x+8+5x-2=10

Express each of the following as a fraction in lowest terms 1: 3/6 2: 2/8 3: 12/20

Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how many hours Randi spent shoveling and salting to earn a profit of $60.00. HINT: Randi charges $25 an hour to shovel and salt.

The lengths of the sides of a triangle are 4, 5, 6. Can the triangle be a right triangle?