Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Simplify:</u>
<u>log both sides:</u>
Assuming that is a 24 the answer would be 24[10] = 240 but if that is the question 2 and the number is just 4 the answer is just 40
R and 81 are common factors so add them together and you get 9r;then your equation is 9r+11=29.After that you subtract 11 from 29 and then the equation is 9r=18.Then you divide 9 from 18 so you get r=2.