Combining oxygen with hydrogen in a fuel cell produces water and energy that can power a car. how many grams of hydrogen must be added to 800 g of oxygen to produce 900 g of water?

A roller coaster has 3 seats in each of 11 rows. Riders are assigned to seats in the order that they arrive.

How much is 1 meter in kilometers

The health benefits Tom receives from his employer cover 43% of the total monthly premium of $345.00. How much does Tom have to pay each month? a. $148.35 b. $196.65 c. $302.00 d. $288.00

Which equation can be used to answer the question below? Jeremiah made 14 of the 32 recipes he downloaded from the Internet. What percent of the recipes did he make? A. 14 = x/32 B. x = 14 (32) C. 14 = 32x D. 14x = 32

What is the volume of a sphere with a radius of 8 cm?

If you can buy one can of pineapple chunks for $2 then how many can you buy with $10?

Assume that cost is 2 times more important than reputation and reputation is 3 times more important than compatibility with existing systems, and compatibility is 5 times more than ease of use, what is the relative importance of all 4 attributes.

A party-size bag of tortilla chips normally costs $3.80. The supermarket has them on sale today for $2.85. What is the percentage of the discount? A) 133% B) 75% C) 95% D) 25%

An Equation is shown. 8/10 + ___ = 93/100 What is the missing fraction?

How do I solve the equation, I think I have to use substitution but I am not sure y=3x+11 5x+3y=-44