I have 300 beads. My sister has 60 more beads than I do. How many beads do we have altogether

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

What is the lcm of 16 and 40 ? 24 and 40 ?

Aline passes through 3,7 and 6,9 what equation represents the line