10. Define an operation ★ on the set of real numbers as follows:

a ★ b = 0.5ab

If 0.1 ★ b = 10, then evaluate bb.

a. 500

b. 200

c. 20

d. 50

Please explain how you got your answer.

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

The graph and table shows the relationship between y, the number of words jean has typed for her essay and x, the number of minutes she has been typing on the computer. according to the line of best fit, about how many words will jean have typed when she completes 60 minutes of typing? 2,500 2,750 3,000 3,250

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.