A company uses a periodic inventory system. Details for the inventory account for the month of January, 2020 are as follows: Date Units unit cost Total
Beginning, 1/1 200 $5.00 $1,000
Purchase, 1/15 100 5.30 530
Purchase, 1/28 100 5.50 550
An end of the month (1/31/2020) inventory showed that 120 units were on hand. If the company uses FIFO, what is the value of the ending inventory?

Which of the following transformations does not preserve congruence? * 5 points a. (x, y) → (y − 3, x − 3) b. (x, y) → (x + 5, y − 1) c. (x, y) → (y + 9, −x + 2) d. (x, y) → (3x + 1, 3y − 2)

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)

Can anyone me get through my algebra 2 class? the only class i need to graduate..