Solve the value for r

(8r-6)°

(5r+5)°

Plz help m

What is the shape of the height and weight distribution

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

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth