Ali sold a table for rs 800 which he bought for rs 1000. what % is his loss

The hypotenuse of a 45 -45 -90 triangle measure 7 square root 2 units

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

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