When the Plaid Wizard uses a potion on a creature, he needs to know how long it takes for the potion to wear off. He uses the general formula for the half-life of a substance to analyze these types of situations.

Explain, in a few sentences, how the Wizard can rearrange a formula like Q(t)=a⋅b^t in order to calculate the half-life of a substance.

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers