Nicole has $120. if she saves $20 per week, in how many days will she have $500?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

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?

What is the value of x in the equation7x+2y=48 when y=3