Find the measure of the arc or angle indicated

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

2/3(-6y+9x) expand each expression using the distributive property

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog