What is square root of 42 to the nearest tenth

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

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

Solve the triangle. a = 21°, c = 105°, c = 5