After 5 month of saving money , nikki had saved 350$ .she has now been saving for 9 months and has saved 690$ .find the percent of increase in the amount of nikki's savings .round the percent to the nearest tenth if necessary. show your work.

Which of the following expressions is equal to 2x^2+8

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top