Answer:
15x + 13
Step-by-step explanation:
Product of a number 'x' & 15 : x *15 = 15x
Sum of 15x & 13:
10 -angles CGD and FGE
11-FGB and EGD
12- BGC and CGD
13-FGB and BGD
14- AGB and BGC
15- EGD
yes
you did it right