To which subset of real numbers does the number 1/5 belong

A collector has 90 movie posters and 75 band posters. She wants to sell 18 movie posters but still have her poster collection maintain the same ratio of 90:75. If she sells 18 movie posters, how many band posters should she sell?

Write an expression that represents "the sum of n and five".

What is the answer to 4x²+7=31

Name the set (s) of numbers to which 1.18 belongs. a. rational numbers b. rational numbers, irrational numbers c. natural numbers, whole numbers, integers, rational numbers

What is radical 50 - radical 2

If |u| = 10, |v| = 8, and the angle formed between them is 60°, then u · v = ___ degrees

4. Angles are measured in units of

The rental car holds 22 gallons of gas and gets 20 miles per gallon. The trip to Ellis City is 1760 miles. How many times will the car need to be filled up to make the trip?

Maria said, the 4 in 400,00 has a a value of 400. Is maria correct? Explain

What are the converse, inverse, and contrapositive of the following true conditional? What are the truth values of each? If a statement is false, give a counterexample. If a figure is a rectangle, then it is a parallelogram.