An expression is given. 3 × (8 + 2) ÷ 2

Which statement is true about the parentheses in this expression?
A. The parentheses indicate that 8 + 2 should be solved first.
B. The parentheses indicate that 8 + 2 should be solved last.
C. The parentheses indicate that 2 ÷ 2 should be solved last.
D. The parentheses indicate that 3 × 8 should be solved first.

If i have 20$ and i gave 5$ away how much i got

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)

What is the distance between the points (2, 5) and (5,9)?