r=50 because 8×50=400 so that is what r would equal The exponent would be 5 the fifth power, because since the number your using to multiply it by is 5 and you are multiplying is by 5 fives it would be 5 to the fifth power
For answer #1. just divide both numbers by 8. Let's see: 400=8r 400/8=8r/8 400/8 equals 50 So, answer #1 is 50.
For answer #2, count the number of times it shows 5, then write that number on the top, in the right-hand corner.(or use an arrow to show it's going up) Let's see: 5×5×5×5×5=5 times it shows 5 So, 5∧5 would be the answer.
