What the answer to asking 40 percent of 70

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

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

Add the fractions and simplify 1/2+ 1/3