Margaret installed a device on his car that guaranteed to increase his gas mileage by 10%. The gas mileage increased 3 miles per gallon after installing the device. How many miles per gallon did he get before the device was installed?

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?

Robert has 78 tomato lants and 56 cucumber plants .he wants to plant them in rows that only have one type of plant in each row with the same number of plants in each row. how many plants should he put in each row and how many rows of each type of plant will he need