Julio spent $21 on a magazine and five notepads. If the magazine cost $6, then how much was each notepad?

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)

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a