What is 0.68 written as a slimplifed fraction

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet