What transformation transforms (a, b) to (a, - b) ?

- a translation of 1 unit up

- a translation of 1 unit down

- a reflection over the x-axis

- a reflection over the y-axis

The radius of a sphere is 6 units. Which expression represents the volume of the sphere, in cubic units? 이 (6) 이 (6) 이 (12) 이 (12)

Liz wants to drink 1.5 litres of water each day. She buys the water in packs of 6 bottles. Each bottle contains 0.5 litres of water. How many packs of water does she need to buy for 10 days

The measure of an angle is 132°. what is the measure of a supplementary angle

How do you you solve one step equations

Sue and Kim earn $52 per week for delivering magazines. Sue worked for x weeks and earned an additional total bonus of $12. Kim worked for y weeks.

A model to represent the product 18*34

Write the simplest form of a rational number 177/413

Use substitution to solve the system x+2y=1 and 2x+5y=3

When combining like terms what is v - 3 - 10v - 1?

Find the 10th term of the geometric sequence 3,6,12,24