Steve spent a total of $43.78 to buy some school supplies that would be needed for the year. he spent $27.86 for a backpack, and $3.98 for each notebook he bought. how many notebooks did steve buy? a. 7 notebooks b. 11 notebooks c. 4 notebooks d. 3 notebooks

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?

Solve one step and two step problems

Ahealth-food producer has 250 samples of a new snack to distribute in the mall. the producer has to keep at least 50 samples for display in the health food for the product launch. how long will the samples last if consumers are taking the samples at a rate of 25 every hour