Big Dig Diamond Company pulverizes 156 tons of rock for every 2 ounces of diamonds it finds. How many tons of rock must it grind up in order to locate
20 ounces of diamonds?

which  best  describes the transformation from the graph of  f(x) =  x2  to the graph of  f(x) = (x  – 3)2  – 1?   left 3 units, down 1 unitleft 3 units, up 1 unitright 3 units, down 1 unit  right 3 units, up 1 unit

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.