Answer:
0.5
Step-by-step explanation:
The base of the exponential function is the number which the exponent is touching. If it is exponential then the exponent must be x. This means 0.5 is the base.
your answer would be 520
13 x 40 = 520
Answer:4
Step-by-step explanation: i think not sure
JN and LP...............
what is this and give more info next time too
Just square the top and bottom of the fraction. 
and 
so we have 12/16 and then we reduce to 3/4