the value of a machine depreciated each year by 15% of its value at the beginning of the year. if the value of the machine after 3 years is 31,934.50, find its value when its new

Which of the following is the shape of a cross section of the figure shown below

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x