Where can we put parentheses in 19 - 3 times 5 to make it equivalent to 80

∆red ≅ ∆ by rule will give brainiest if possible

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)

Molly planted vegetables in 0.6 of her garden and flowers in the rest of it. she planted green beans in 0.4 of the vegetable section of the garden. how much of her garden was planted with green beans?