Write and solve an equation. tommy has 5 more toy cars than billy does. if tommy has 12 toy cars, how many cars, c, does billy have? solve for c. enter your answer in the box.

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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)

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?