6th work. What measure of Central tendency is calculated by adding all the values and diving the sum by the number of values A) Median

B) Mean

C) Mode

D) Range​

Mean because I think

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!