Answer:
51
Step-by-step explanation:
10 by 5 is 50 plus 9 is 59 subtract 8 is 51
10*5+9-8 = 51
1. a =3(2a) +5 and a= 6a+5
2. 47=3(2times 7) +5 and 47 =6 time 7 plus 5
Answer:yes 3x2=6
b
