pls solve:The cost of maintaining a car is partly constant and partly varies as the distance travelled in a given month. The cost for a particular month is N125 when the distance traveled is 300km. While for a distance of 12000km the cost is N350 fund the cost for a journey of 16000km and the distance travelled, if the cost is N230​

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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 ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap