You have 2 out of the total of 100 raffle tickets sold so you have a (\( \frac{2}{100} \)) x 100 = \( \frac{2 \times 100}{100} \) = \( \frac{200}{100} \) = 2% chance to win the raffle.

The amount of flour you need is (3\(\frac{3}{4}\) - 1\(\frac{1}{2}\)) cups. Rewrite the quantities so they share a common denominator and subtract:

(\( \frac{30}{8} \) - \( \frac{12}{8} \)) cups
\( \frac{18}{8} \) cups
2\(\frac{1}{4}\) cups

Latoya scored 89% on the test meaning she earned 89% of the possible points on the test. There were 400 possible points on the test so she earned 400 x 0.89 = 356 points. Each question is worth 4 points so she got \( \frac{356}{4} \) = 89 questions right.

The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.

A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.