Calculate the equation of the line given the coordinates (-2,-10) and (5,4)

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )

The length of the minute hand is 150% of the length of the hour hand. in 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? round your answer to the nearest tenth. hour hand: 30mm

9. estimate 19.73 + 6.78 by rounding before you add or subtract.