Alondra makes 4 necklaces. she uses 5 beads on each necklace. which number sentence could be used to find the number of beads alondra uses?

How many days was the temperature above 90 degrees?

What expression is equivalent to 1/2(2+3x-6)

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?