The product of 5 and a number x is 14 .

what is the value of x?

x=19/4
x=1/20
x=5/4
x=4 3/4

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)