If a police car stopped cars that were going more the 105km/h how many cars would they stop if there were 8,000 cars on the highway

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

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

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