i believe it’s D because congruent means equal so you can equate both of 5x+24=9x-17 and find the value of C which is 10.25
We usually use the distributive property because the two terms inside the parentheses can't be added because they're not like terms.
Make sure you apply the outside number to all of the terms inside the parentheses/brackets.
3/8 is probably the best estimate.
21.16 ! I got my handy calculator cause imma dum dum..