Which of the following are the factors of t4 - 81? A. (t - 3) (t + 3) (t2 + 9) B. (t - 3) 2 (t + 3) 2 C. (t - 3) (t + 3) 2 D. (t2 - 9) (t2 - 9)

The population of a certain inner-city area is estimated to be declining according to the model P (t) = 331,000e-0.017t, where t is the number of years from the present.

What is - 3 1/3 : 9? A. - 10/27 B. - 1/9 C. 1/9 D. 10/27

the weight of meteorite A is 7 times the weight of meteorite B. if the sum of their weight is 176 tons, find the weight of each

Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x - and y-variables. Solve the system by the elimination method.

Which solid best models an orange from the produce section of a grocery store? A. Cone B. Cylinder C. Prism D. Sphere

Robert can run 1/2 of a mile in 1/15 of an hour. How many miles can Robert run in an Hour?

If the sales tax in our city is 4.9%, and an item costs $21 before tax, how much tax would you pay on that item?

The surface area of a rectangular prism is 42 cm2.

In a week karry ran 9.3 miles and Tricia ran 4.4 miles. Use mental math to find how much farther Karry ran than Tricia. Explain how you determined the difference.

What kind of function is 3y-2=x+7