What's a statement that is true for any number or variable

The steps to convert 23/4 to a decimal are shown below

A campus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. The club members charged $1 for a cup of coffee, 3$ for a muffin, and $4 for a back. And egg sandwich.

A locker combination has three nonzero digits, and the digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?

Kenny selected 3/10 of number of seashells in a box. Chloe selected 54/100 of the original number of seashells. What is the total fraction of the original number of seashell that both students selected?

A light wave travels at a speed of 3.0 * 108 meters/second. If the wavelength is 7.0 * 10-7 meters, what is the frequency of the wave? A 2.5 * 10-14 hertz B 4.3 * 1014 hertz C 1.7 * 10-14 hertz D 5.1 * 10-14 hertz

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.