Carter has 40 identical coins with a diameter of 3.1 inches and a thickness of 0.4 inches. if he stacks all the coins on top of the other, what is the total volume of the stack of coins in cubic inches?

Which graph represents an even function?

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.