Select the answer that best describes the following statements:
a. ¬ (p → q) ⇌ (¬ p → ¬ q) (p → q) is logically equivalent to (¬ p ∨ q).
b. (p → q) is logically equivalent to (¬ q → ¬ p).
c. (p → q) is true only if both p and q are true or both p and q are false.
i. true
ii. false

Write each expression in exponential form and find its value. 3 x 3 x 3

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Brent wants to know what is 5 x 1/2