Match each linear equation with the name of its form

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

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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