Prove that the sum of two rational numbers is a rational number.

If Mr. Smith had 4 daughter each daughter had a brother how many kids mr. smith have?

Simplify the expression. (1-cot (x)) ^2/cot (x) A) cot (x) + 2 B) sin (x) c0s (x) - 2 C) tan (x) + cot (x) - 2 D) csc^3 (x) cot (x) - 1

If f (x) = 7x+4x and g (x) = 1/2x what is the value of (f/g) (5)

Whats the answer all of them explain how to find which is greather 1/4 of 12 or 1/3 of 12 explain your answer

Blank hundreds = 80 tens

Shane bought lunch for $5.38 and a shirt for $15.95. He then used the rest of his money to buy a book. He spent a total of $38.12. How much money did Shane spend on the book?

If j have 24,000 dollars and i invest in 15% of my moneg what would be my avarege money left

What is the greatest whole number that is less than (5/2) * 3 * / (3/4) * 2

I'm thinking of a number. When you triple my number and subtract 8 you get 7. What is my number?

Is 100 a solution because it is much greater than 35. True or false