Solve each problem that has a solution. if a problem has no solution, explain why
1. lee and jessie swam towards each other from opposite sides of a lake that is 3.9
km wide. they began swimming a 2: 00p. m. and met a 2: 30 p. m. lee's speed was
1 km/h greater than jessies speed . find their speeds.
2. a rectangle is 4 cm longer than it is wide . if the length and width are both decreased by 2cm , the area is decreased by 24 cm^2. find the dimensions of the original rectangle .
3. roy says he has more nickels than dimes . if he has $5.20, how many of each coin does he have ?

Select the correct answer. what is the surface area of the victory podium shown here? include all surfaces of the podium, including the bottom. a. 61.5 square feet b. 61.75 square feet c. 65.25 square feet d. 69 square feet

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

The graph below shows the line of best fit for data collected on the number of cell phones and cell phone cases sold at a local electronics store on twelve different days. number of cell phone cases sold 50 * 0 5 10 15 20 25 30 35 40 45 number of cell phones sold which of the following is the equation for the line of best fit? a. y = 0.8x b. y = 0.2x c. y=0.5x d. y = 0.25x