Christina's bird feeder holds 7/10 of a cup of birdseed. Christina is filling the bird feeder with a scoop that holds 1/10 of a cup. How many scoops of birdseed will Christina put into the feeder? Leave answer in simplest form

Find the value of the cosine for angle a

The value √10 and √15 are plotted on the number line

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)