How come when you multiply two negatives, it makes a positive?

Which of the binomials below is a factor of this trinomial 4x^2-4x-120 A. x+6 B. x-6 C. x-4 D. x+4

What is an array of 4 x 875

An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill the pool in 2 hours. How long will it take both pipes to fill the pool?

How do you find circumference if you're given the radius

Find the sum of the interior angle measures of a convex 17-gon (a seventeen-sided polygon).

What is the simplified form of - 8y+20 but I only 1 as the coefficient of y

What number is 100,000 more than 75,000 and explain how u got answer

3 times a number decreased by 40 equals 14

An exceptionally bright high school student has applied for two scholarships: a merit scholarship and an athletic scholarship. He estimates the following probabilities: The probability of getting the merit scholarship is 0.

A boy bought 9 new cards to add to his card collection of 25 cards. The next day his dog ate half of his collection. How many cards does he have left?