annual cost of 35,000 expected to save 40,000 during the first year how many months will the take to recover investment

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Huong is organizing paperback and hardback books for her club's used book sale. the number of paperbacks is 12 less than three times the number of hardbacks. huong had 162 paperbacks. how many hardback books were there?

Select all of the categories that apply for the figure below. quadrilateral, trapezoid, parallelogram, rhombus, rectangle, square