Arectangle is enlarged by a factor of 6 that originally has the area of 20in squared. what is the area of the enlarged rectangle?
a: 120in squared
b: 720in squared
c: 2,400in squared
d: 14,400in squared

If 25% of y is 30, what is 60% of y?

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)

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)