The force, F, acting on a charged object varies inversely to the square of its
distance, r, from another charged object. When the two objects are 0.64 meter
apart, the force acting on them is 8.2 Newtons. Approximately how much force
would the object feel if it is at a distance of 0.77 meter from the other object?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.