German Silver is an alloy composed of nickel, zinc, and copper in a ratio of 3:4:13.

How many kilograms of each metal are needed to make 4 kg of this alloy?

Is 26,341 divisible by 9

F (x) = -2•+7 find f (5)

You want to use the hot tub at the hotel you're staying at, but it's not hot enough. The hotel manager tells you they they will turn the heat up and the temperature will increase by 10% each hour. The initial temperature of the hot tub is 68°.

Solve for x in the equation X2-12x+59 = 0.

Is this statement always, sometimes, or never true. The sum of the measures of a linear pair of angles is 90

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.