Why do two negative numbers multiplied equal a positive?

What is 240,000 written as a whole number multiplied by a power of ten?

16-pound bag of Kitty Kibbles is $24.00. An 8-pound bag of Feline Flavor is $11.20. Which statement about the unit prices is true?

Why does nCn equal 1

If two angles are supplementary and congruent, what is the measure of each angle? 45° 100° 90° 180°

One of the heaviest rainfalls recorded in greentown in a 24-hour period was 178.8 centimeters. if the rainfall was constant, how many centimeters of rain fell during each hour

Natalie is opening a clothing store. She plans to start by selling gym shorts. It costs her $7 for each pair of shorts, $3 per box for the shorts, and $0.25 a bag.

What is the equation of a line that passes through (0, 5) and (-10, 0)

What is 7 square root 4 to the power of 3?

What is the degree of this polynomial? - 11x^3+10x

Macie just bought a new fish tank. The fish tank is a cube with a side length of 1.75 feet. She is going to fill the fish tank using a small plastic container she found in her kitchen cupboard by filling it at the sink, walking it to the tank,