91Ó°ÊÓ

Evaluate the expression. Write fractions in simplest form. $$ \frac{3^{3}}{3^{-4}} $$

Write your answer as a power or as a product of powers. $$ 5^{8} \cdot 5^{3} $$

Use the following information. The concentration of aspirin in a person's bloodstream can be modeled by the equation \(y=A(0.8)^{t},\) where \(y\) represents the concentration of aspirin in a person's bloodstream in milligrams (mg), \(A\) represents the amount of aspirin taken, and \(t\) represents the number of hours since the medication was taken. Find the amount of aspirin remaining in a person's bloodstream at the given dosage. Dosage: \(250 \mathrm{mg}\) Time: after 2 hours

Evaluate the exponential expression. Write fractions in simplest form $$8^{-7} \cdot 8^{7}$$

Evaluate the expression. Write fractions in simplest form. $$ \frac{8^{3} \cdot 8^{2}}{8^{5}} $$

Write your answer as a power or as a product of powers. $$ \left(2^{3}\right)^{2} $$

A population of 30 mice is released in a wildlife region. The population doubles each year for 4 years. What is the population after 4 years?

DECIMAL FORM Rewrite in decimal form. $$ 1.1098 \times 10^{10} $$

Use the following information. The concentration of aspirin in a person's bloodstream can be modeled by the equation \(y=A(0.8)^{t},\) where \(y\) represents the concentration of aspirin in a person's bloodstream in milligrams (mg), \(A\) represents the amount of aspirin taken, and \(t\) represents the number of hours since the medication was taken. Find the amount of aspirin remaining in a person's bloodstream at the given dosage. Dosage: \(500 \mathrm{mg}\) Time: after 3.5 hours

Use the following information. The concentration of aspirin in a person's bloodstream can be modeled by the equation \(y=A(0.8)^{t},\) where \(y\) represents the concentration of aspirin in a person's bloodstream in milligrams (mg), \(A\) represents the amount of aspirin taken, and \(t\) represents the number of hours since the medication was taken. Find the amount of aspirin remaining in a person's bloodstream at the given dosage. Dosage: \(750 \mathrm{mg}\) Time: after 5 hours