What

would the variable if 4/9 times a number equals - 8

From some petroleum, you can get 30% of paraffin. How much petroleum do you need in order to get 18.75 tons of paraffin?

Suppose you wanted to give cosine function an inverse by restricting it's domain to [pi, k] for some value of k. What should the value of k be?

Toy train A crosses a pole after every 24seconds. Toy train B crosses the pole after every 30 seconds and toy train C crosses the pole after every 36 seconds. After how many minutes, do they all cross the pole together?

Thirty is five minus the product of five and a number. find the number

A group of friends went out for lunch. Two people ordered soup. Two people ordered sandwiches. Each sandwich costs twice as much as a bowl of soup. Two people ordered burgers. Each burger costs three times as much as a bowl of soup.

18x-16y=-312 78x-16y=408

How to estimate 5.4 x 0.1

the weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?

What is the name of the number with a million zeros and a 1 in front

Jia Inc., has an odd dividend policy. The company has just paid a dividend of $4 per share and has announced that it will increase the dividend by $5 per share for each of the next four years, and then never pay another dividend.