How are the graphs of the function f(x)= square root 16^x and g(x)=3 square root 64^x related

What expression is equivalent to 42x-56y

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41