You need to lay tile to create a frieze above the doorway. The tile measures 2 7/8 inches by 2 7/8 inches. If the door way is 35 1/2 inches wide, how many pieces of the tile are needed?

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Which of the following graphs could represent a cubic function?

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?